Home / 8,905.20-13,357.84-3,061.76

Finding the Fourth Proportional to 8,905.20, 13,357.84 and 3,061.76

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Solution

The fourth proportional to 8,905.20, 13,357.84 and 3,061.76 is: 4,592.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.20 : 13,357.84 = 3,061.76 : x
  2. Step 2: Convert to fraction form
    8,905.20/13,357.84 = 3,061.76/x
  3. Step 3: Cross multiply
    8,905.20x = 13,357.84 × 3,061.76
  4. Step 4: Simplify right side
    8,905.20x = 40,898,500.20
  5. Step 5: Solve for x
    x = 40,898,500.20/8,905.20
  6. Step 6: Final answer
    x = 4,592.65

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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.