Home / 10,152.45-15,204.92-8,780.85

Finding the Fourth Proportional to 10,152.45, 15,204.92 and 8,780.85

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Solution

The fourth proportional to 10,152.45, 15,204.92 and 8,780.85 is: 13,150.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,152.45 : 15,204.92 = 8,780.85 : x
  2. Step 2: Convert to fraction form
    10,152.45/15,204.92 = 8,780.85/x
  3. Step 3: Cross multiply
    10,152.45x = 15,204.92 × 8,780.85
  4. Step 4: Simplify right side
    10,152.45x = 133,512,077.88
  5. Step 5: Solve for x
    x = 133,512,077.88/10,152.45
  6. Step 6: Final answer
    x = 13,150.72

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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.