Home / 10,378.44-15,572.18-5,446.88

Finding the Fourth Proportional to 10,378.44, 15,572.18 and 5,446.88

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Solution

The fourth proportional to 10,378.44, 15,572.18 and 5,446.88 is: 8,172.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.44 : 15,572.18 = 5,446.88 : x
  2. Step 2: Convert to fraction form
    10,378.44/15,572.18 = 5,446.88/x
  3. Step 3: Cross multiply
    10,378.44x = 15,572.18 × 5,446.88
  4. Step 4: Simplify right side
    10,378.44x = 84,819,795.80
  5. Step 5: Solve for x
    x = 84,819,795.80/10,378.44
  6. Step 6: Final answer
    x = 8,172.69

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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.