Home / 8,355.40-11,531.68-4,817.92

Finding the Fourth Proportional to 8,355.40, 11,531.68 and 4,817.92

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Solution

The fourth proportional to 8,355.40, 11,531.68 and 4,817.92 is: 6,649.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.40 : 11,531.68 = 4,817.92 : x
  2. Step 2: Convert to fraction form
    8,355.40/11,531.68 = 4,817.92/x
  3. Step 3: Cross multiply
    8,355.40x = 11,531.68 × 4,817.92
  4. Step 4: Simplify right side
    8,355.40x = 55,558,711.71
  5. Step 5: Solve for x
    x = 55,558,711.71/8,355.40
  6. Step 6: Final answer
    x = 6,649.44

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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.