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Finding the Fourth Proportional to 13,294.92, 19,909.54 and 9,909.59

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Solution

The fourth proportional to 13,294.92, 19,909.54 and 9,909.59 is: 14,839.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,294.92 : 19,909.54 = 9,909.59 : x
  2. Step 2: Convert to fraction form
    13,294.92/19,909.54 = 9,909.59/x
  3. Step 3: Cross multiply
    13,294.92x = 19,909.54 × 9,909.59
  4. Step 4: Simplify right side
    13,294.92x = 197,295,378.49
  5. Step 5: Solve for x
    x = 197,295,378.49/13,294.92
  6. Step 6: Final answer
    x = 14,839.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.