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Finding the Fourth Proportional to 11,665.52, 16,098.72 and 6,885.72

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Solution

The fourth proportional to 11,665.52, 16,098.72 and 6,885.72 is: 9,502.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,665.52 : 16,098.72 = 6,885.72 : x
  2. Step 2: Convert to fraction form
    11,665.52/16,098.72 = 6,885.72/x
  3. Step 3: Cross multiply
    11,665.52x = 16,098.72 × 6,885.72
  4. Step 4: Simplify right side
    11,665.52x = 110,851,278.28
  5. Step 5: Solve for x
    x = 110,851,278.28/11,665.52
  6. Step 6: Final answer
    x = 9,502.47

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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.