Home / 9,540.27-14,312.68-3,990.53

Finding the Fourth Proportional to 9,540.27, 14,312.68 and 3,990.53

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Solution

The fourth proportional to 9,540.27, 14,312.68 and 3,990.53 is: 5,986.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,540.27 : 14,312.68 = 3,990.53 : x
  2. Step 2: Convert to fraction form
    9,540.27/14,312.68 = 3,990.53/x
  3. Step 3: Cross multiply
    9,540.27x = 14,312.68 × 3,990.53
  4. Step 4: Simplify right side
    9,540.27x = 57,115,178.92
  5. Step 5: Solve for x
    x = 57,115,178.92/9,540.27
  6. Step 6: Final answer
    x = 5,986.75

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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.