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Finding the Fourth Proportional to 15,776.56, 23,663.22 and 5,389.12

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Solution

The fourth proportional to 15,776.56, 23,663.22 and 5,389.12 is: 8,083.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,776.56 : 23,663.22 = 5,389.12 : x
  2. Step 2: Convert to fraction form
    15,776.56/23,663.22 = 5,389.12/x
  3. Step 3: Cross multiply
    15,776.56x = 23,663.22 × 5,389.12
  4. Step 4: Simplify right side
    15,776.56x = 127,523,932.17
  5. Step 5: Solve for x
    x = 127,523,932.17/15,776.56
  6. Step 6: Final answer
    x = 8,083.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.