Home / 10,648.20-15,972.30-6,769.80

Finding the Fourth Proportional to 10,648.20, 15,972.30 and 6,769.80

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Solution

The fourth proportional to 10,648.20, 15,972.30 and 6,769.80 is: 10,154.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,648.20 : 15,972.30 = 6,769.80 : x
  2. Step 2: Convert to fraction form
    10,648.20/15,972.30 = 6,769.80/x
  3. Step 3: Cross multiply
    10,648.20x = 15,972.30 × 6,769.80
  4. Step 4: Simplify right side
    10,648.20x = 108,129,276.54
  5. Step 5: Solve for x
    x = 108,129,276.54/10,648.20
  6. Step 6: Final answer
    x = 10,154.70

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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.