Home / 9,318.18-13,964.85-8,145.30

Finding the Fourth Proportional to 9,318.18, 13,964.85 and 8,145.30

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Solution

The fourth proportional to 9,318.18, 13,964.85 and 8,145.30 is: 12,207.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.18 : 13,964.85 = 8,145.30 : x
  2. Step 2: Convert to fraction form
    9,318.18/13,964.85 = 8,145.30/x
  3. Step 3: Cross multiply
    9,318.18x = 13,964.85 × 8,145.30
  4. Step 4: Simplify right side
    9,318.18x = 113,747,892.71
  5. Step 5: Solve for x
    x = 113,747,892.71/9,318.18
  6. Step 6: Final answer
    x = 12,207.09

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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.