Home / 15,285.38-21,093.51-8,571.59

Finding the Fourth Proportional to 15,285.38, 21,093.51 and 8,571.59

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Solution

The fourth proportional to 15,285.38, 21,093.51 and 8,571.59 is: 11,828.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.38 : 21,093.51 = 8,571.59 : x
  2. Step 2: Convert to fraction form
    15,285.38/21,093.51 = 8,571.59/x
  3. Step 3: Cross multiply
    15,285.38x = 21,093.51 × 8,571.59
  4. Step 4: Simplify right side
    15,285.38x = 180,804,925.16
  5. Step 5: Solve for x
    x = 180,804,925.16/15,285.38
  6. Step 6: Final answer
    x = 11,828.62

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.