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Finding the Fourth Proportional to 11,240.68, 16,819.26 and 7,061.12

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Solution

The fourth proportional to 11,240.68, 16,819.26 and 7,061.12 is: 10,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240.68 : 16,819.26 = 7,061.12 : x
  2. Step 2: Convert to fraction form
    11,240.68/16,819.26 = 7,061.12/x
  3. Step 3: Cross multiply
    11,240.68x = 16,819.26 × 7,061.12
  4. Step 4: Simplify right side
    11,240.68x = 118,762,813.17
  5. Step 5: Solve for x
    x = 118,762,813.17/11,240.68
  6. Step 6: Final answer
    x = 10,565.45

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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.