Home / 13,115.57-19,669.10-4,348.13

Finding the Fourth Proportional to 13,115.57, 19,669.10 and 4,348.13

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Solution

The fourth proportional to 13,115.57, 19,669.10 and 4,348.13 is: 6,520.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.57 : 19,669.10 = 4,348.13 : x
  2. Step 2: Convert to fraction form
    13,115.57/19,669.10 = 4,348.13/x
  3. Step 3: Cross multiply
    13,115.57x = 19,669.10 × 4,348.13
  4. Step 4: Simplify right side
    13,115.57x = 85,523,683.70
  5. Step 5: Solve for x
    x = 85,523,683.70/13,115.57
  6. Step 6: Final answer
    x = 6,520.78

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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.