Home / 8,909.47-13,355.38-4,221.24

Finding the Fourth Proportional to 8,909.47, 13,355.38 and 4,221.24

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Solution

The fourth proportional to 8,909.47, 13,355.38 and 4,221.24 is: 6,327.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.47 : 13,355.38 = 4,221.24 : x
  2. Step 2: Convert to fraction form
    8,909.47/13,355.38 = 4,221.24/x
  3. Step 3: Cross multiply
    8,909.47x = 13,355.38 × 4,221.24
  4. Step 4: Simplify right side
    8,909.47x = 56,376,264.27
  5. Step 5: Solve for x
    x = 56,376,264.27/8,909.47
  6. Step 6: Final answer
    x = 6,327.68

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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.