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Finding the Fourth Proportional to 11,641.52, 16,066.10 and 6,605.79

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Solution

The fourth proportional to 11,641.52, 16,066.10 and 6,605.79 is: 9,116.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,641.52 : 16,066.10 = 6,605.79 : x
  2. Step 2: Convert to fraction form
    11,641.52/16,066.10 = 6,605.79/x
  3. Step 3: Cross multiply
    11,641.52x = 16,066.10 × 6,605.79
  4. Step 4: Simplify right side
    11,641.52x = 106,129,249.69
  5. Step 5: Solve for x
    x = 106,129,249.69/11,641.52
  6. Step 6: Final answer
    x = 9,116.45

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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.