Home / 15,285.36-21,093.54-8,571.24

Finding the Fourth Proportional to 15,285.36, 21,093.54 and 8,571.24

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Solution

The fourth proportional to 15,285.36, 21,093.54 and 8,571.24 is: 11,828.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.36 : 21,093.54 = 8,571.24 : x
  2. Step 2: Convert to fraction form
    15,285.36/21,093.54 = 8,571.24/x
  3. Step 3: Cross multiply
    15,285.36x = 21,093.54 × 8,571.24
  4. Step 4: Simplify right side
    15,285.36x = 180,797,793.79
  5. Step 5: Solve for x
    x = 180,797,793.79/15,285.36
  6. Step 6: Final answer
    x = 11,828.17

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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.