Home / 10,360.40-15,524.76-7,761.68

Finding the Fourth Proportional to 10,360.40, 15,524.76 and 7,761.68

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Solution

The fourth proportional to 10,360.40, 15,524.76 and 7,761.68 is: 11,630.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,360.40 : 15,524.76 = 7,761.68 : x
  2. Step 2: Convert to fraction form
    10,360.40/15,524.76 = 7,761.68/x
  3. Step 3: Cross multiply
    10,360.40x = 15,524.76 × 7,761.68
  4. Step 4: Simplify right side
    10,360.40x = 120,498,219.20
  5. Step 5: Solve for x
    x = 120,498,219.20/10,360.40
  6. Step 6: Final answer
    x = 11,630.65

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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.