Home / 15,573.36-21,491.28-9,285.60

Finding the Fourth Proportional to 15,573.36, 21,491.28 and 9,285.60

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Solution

The fourth proportional to 15,573.36, 21,491.28 and 9,285.60 is: 12,814.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,573.36 : 21,491.28 = 9,285.60 : x
  2. Step 2: Convert to fraction form
    15,573.36/21,491.28 = 9,285.60/x
  3. Step 3: Cross multiply
    15,573.36x = 21,491.28 × 9,285.60
  4. Step 4: Simplify right side
    15,573.36x = 199,559,429.57
  5. Step 5: Solve for x
    x = 199,559,429.57/15,573.36
  6. Step 6: Final answer
    x = 12,814.15

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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.