Home / 10,377.20-15,572.16-5,450.37

Finding the Fourth Proportional to 10,377.20, 15,572.16 and 5,450.37

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Solution

The fourth proportional to 10,377.20, 15,572.16 and 5,450.37 is: 8,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,377.20 : 15,572.16 = 5,450.37 : x
  2. Step 2: Convert to fraction form
    10,377.20/15,572.16 = 5,450.37/x
  3. Step 3: Cross multiply
    10,377.20x = 15,572.16 × 5,450.37
  4. Step 4: Simplify right side
    10,377.20x = 84,874,033.70
  5. Step 5: Solve for x
    x = 84,874,033.70/10,377.20
  6. Step 6: Final answer
    x = 8,178.90

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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.