Home / 14,311.07-21,464.17-3,781.20

Finding the Fourth Proportional to 14,311.07, 21,464.17 and 3,781.20

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Solution

The fourth proportional to 14,311.07, 21,464.17 and 3,781.20 is: 5,671.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,311.07 : 21,464.17 = 3,781.20 : x
  2. Step 2: Convert to fraction form
    14,311.07/21,464.17 = 3,781.20/x
  3. Step 3: Cross multiply
    14,311.07x = 21,464.17 × 3,781.20
  4. Step 4: Simplify right side
    14,311.07x = 81,160,319.60
  5. Step 5: Solve for x
    x = 81,160,319.60/14,311.07
  6. Step 6: Final answer
    x = 5,671.16

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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.