Home / 9,318.18-12,856.89-6,298.92

Finding the Fourth Proportional to 9,318.18, 12,856.89 and 6,298.92

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Solution

The fourth proportional to 9,318.18, 12,856.89 and 6,298.92 is: 8,691.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.18 : 12,856.89 = 6,298.92 : x
  2. Step 2: Convert to fraction form
    9,318.18/12,856.89 = 6,298.92/x
  3. Step 3: Cross multiply
    9,318.18x = 12,856.89 × 6,298.92
  4. Step 4: Simplify right side
    9,318.18x = 80,984,521.56
  5. Step 5: Solve for x
    x = 80,984,521.56/9,318.18
  6. Step 6: Final answer
    x = 8,691.02

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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.