Home / 10,371.40-15,557.10-3,445.90

Finding the Fourth Proportional to 10,371.40, 15,557.10 and 3,445.90

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Solution

The fourth proportional to 10,371.40, 15,557.10 and 3,445.90 is: 5,168.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371.40 : 15,557.10 = 3,445.90 : x
  2. Step 2: Convert to fraction form
    10,371.40/15,557.10 = 3,445.90/x
  3. Step 3: Cross multiply
    10,371.40x = 15,557.10 × 3,445.90
  4. Step 4: Simplify right side
    10,371.40x = 53,608,210.89
  5. Step 5: Solve for x
    x = 53,608,210.89/10,371.40
  6. Step 6: Final answer
    x = 5,168.85

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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.