Home / 10,125.42-15,180.84-6,221.76

Finding the Fourth Proportional to 10,125.42, 15,180.84 and 6,221.76

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Solution

The fourth proportional to 10,125.42, 15,180.84 and 6,221.76 is: 9,328.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.42 : 15,180.84 = 6,221.76 : x
  2. Step 2: Convert to fraction form
    10,125.42/15,180.84 = 6,221.76/x
  3. Step 3: Cross multiply
    10,125.42x = 15,180.84 × 6,221.76
  4. Step 4: Simplify right side
    10,125.42x = 94,451,543.08
  5. Step 5: Solve for x
    x = 94,451,543.08/10,125.42
  6. Step 6: Final answer
    x = 9,328.16

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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.