Home / 9,687.20-13,360.56-6,151.28

Finding the Fourth Proportional to 9,687.20, 13,360.56 and 6,151.28

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Solution

The fourth proportional to 9,687.20, 13,360.56 and 6,151.28 is: 8,483.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,687.20 : 13,360.56 = 6,151.28 : x
  2. Step 2: Convert to fraction form
    9,687.20/13,360.56 = 6,151.28/x
  3. Step 3: Cross multiply
    9,687.20x = 13,360.56 × 6,151.28
  4. Step 4: Simplify right side
    9,687.20x = 82,184,545.52
  5. Step 5: Solve for x
    x = 82,184,545.52/9,687.20
  6. Step 6: Final answer
    x = 8,483.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.