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Finding the Fourth Proportional to 11,061.96, 15,254.64 and 9,387.96

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Solution

The fourth proportional to 11,061.96, 15,254.64 and 9,387.96 is: 12,946.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,061.96 : 15,254.64 = 9,387.96 : x
  2. Step 2: Convert to fraction form
    11,061.96/15,254.64 = 9,387.96/x
  3. Step 3: Cross multiply
    11,061.96x = 15,254.64 × 9,387.96
  4. Step 4: Simplify right side
    11,061.96x = 143,209,950.13
  5. Step 5: Solve for x
    x = 143,209,950.13/11,061.96
  6. Step 6: Final answer
    x = 12,946.16

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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.