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Finding the Fourth Proportional to 11,614.31, 16,030.28 and 7,141.90

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Solution

The fourth proportional to 11,614.31, 16,030.28 and 7,141.90 is: 9,857.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,614.31 : 16,030.28 = 7,141.90 : x
  2. Step 2: Convert to fraction form
    11,614.31/16,030.28 = 7,141.90/x
  3. Step 3: Cross multiply
    11,614.31x = 16,030.28 × 7,141.90
  4. Step 4: Simplify right side
    11,614.31x = 114,486,656.73
  5. Step 5: Solve for x
    x = 114,486,656.73/11,614.31
  6. Step 6: Final answer
    x = 9,857.38

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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.