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Finding the Fourth Proportional to 11,877.71, 16,390.99 and 6,572.52

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Solution

The fourth proportional to 11,877.71, 16,390.99 and 6,572.52 is: 9,069.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,877.71 : 16,390.99 = 6,572.52 : x
  2. Step 2: Convert to fraction form
    11,877.71/16,390.99 = 6,572.52/x
  3. Step 3: Cross multiply
    11,877.71x = 16,390.99 × 6,572.52
  4. Step 4: Simplify right side
    11,877.71x = 107,730,117.81
  5. Step 5: Solve for x
    x = 107,730,117.81/11,877.71
  6. Step 6: Final answer
    x = 9,069.94

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.