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Finding the Fourth Proportional to 10,489.14, 14,339.93 and 10,489.14

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Solution

The fourth proportional to 10,489.14, 14,339.93 and 10,489.14 is: 14,339.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,489.14 : 14,339.93 = 10,489.14 : x
  2. Step 2: Convert to fraction form
    10,489.14/14,339.93 = 10,489.14/x
  3. Step 3: Cross multiply
    10,489.14x = 14,339.93 × 10,489.14
  4. Step 4: Simplify right side
    10,489.14x = 150,413,480.91
  5. Step 5: Solve for x
    x = 150,413,480.91/10,489.14
  6. Step 6: Final answer
    x = 14,339.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.