Home / 14,520.74-21,781.08-4,132.49

Finding the Fourth Proportional to 14,520.74, 21,781.08 and 4,132.49

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Solution

The fourth proportional to 14,520.74, 21,781.08 and 4,132.49 is: 6,198.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.74 : 21,781.08 = 4,132.49 : x
  2. Step 2: Convert to fraction form
    14,520.74/21,781.08 = 4,132.49/x
  3. Step 3: Cross multiply
    14,520.74x = 21,781.08 × 4,132.49
  4. Step 4: Simplify right side
    14,520.74x = 90,009,986.38
  5. Step 5: Solve for x
    x = 90,009,986.38/14,520.74
  6. Step 6: Final answer
    x = 6,198.72

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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.