Home / 14,115.60-21,165.30-4,253.40

Finding the Fourth Proportional to 14,115.60, 21,165.30 and 4,253.40

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Solution

The fourth proportional to 14,115.60, 21,165.30 and 4,253.40 is: 6,377.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.60 : 21,165.30 = 4,253.40 : x
  2. Step 2: Convert to fraction form
    14,115.60/21,165.30 = 4,253.40/x
  3. Step 3: Cross multiply
    14,115.60x = 21,165.30 × 4,253.40
  4. Step 4: Simplify right side
    14,115.60x = 90,024,487.02
  5. Step 5: Solve for x
    x = 90,024,487.02/14,115.60
  6. Step 6: Final answer
    x = 6,377.66

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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.