Home / 9,687.20-13,364.89-6,331.95

Finding the Fourth Proportional to 9,687.20, 13,364.89 and 6,331.95

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Solution

The fourth proportional to 9,687.20, 13,364.89 and 6,331.95 is: 8,735.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,687.20 : 13,364.89 = 6,331.95 : x
  2. Step 2: Convert to fraction form
    9,687.20/13,364.89 = 6,331.95/x
  3. Step 3: Cross multiply
    9,687.20x = 13,364.89 × 6,331.95
  4. Step 4: Simplify right side
    9,687.20x = 84,625,748.41
  5. Step 5: Solve for x
    x = 84,625,748.41/9,687.20
  6. Step 6: Final answer
    x = 8,735.83

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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.