Home / 15,505.00-21,387.77-9,753.29

Finding the Fourth Proportional to 15,505.00, 21,387.77 and 9,753.29

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Solution

The fourth proportional to 15,505.00, 21,387.77 and 9,753.29 is: 13,453.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,505.00 : 21,387.77 = 9,753.29 : x
  2. Step 2: Convert to fraction form
    15,505.00/21,387.77 = 9,753.29/x
  3. Step 3: Cross multiply
    15,505.00x = 21,387.77 × 9,753.29
  4. Step 4: Simplify right side
    15,505.00x = 208,601,186.96
  5. Step 5: Solve for x
    x = 208,601,186.96/15,505.00
  6. Step 6: Final answer
    x = 13,453.80

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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.