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Finding the Fourth Proportional to 13,593, 18,753.12 and 8,555.28

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Solution

The fourth proportional to 13,593, 18,753.12 and 8,555.28 is: 11,803.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,593 : 18,753.12 = 8,555.28 : x
  2. Step 2: Convert to fraction form
    13,593/18,753.12 = 8,555.28/x
  3. Step 3: Cross multiply
    13,593x = 18,753.12 × 8,555.28
  4. Step 4: Simplify right side
    13,593x = 160,438,192.47
  5. Step 5: Solve for x
    x = 160,438,192.47/13,593
  6. Step 6: Final answer
    x = 11,803.00

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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.