Home / 9,125.14-12,589.76-7,204.87

Finding the Fourth Proportional to 9,125.14, 12,589.76 and 7,204.87

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Solution

The fourth proportional to 9,125.14, 12,589.76 and 7,204.87 is: 9,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.14 : 12,589.76 = 7,204.87 : x
  2. Step 2: Convert to fraction form
    9,125.14/12,589.76 = 7,204.87/x
  3. Step 3: Cross multiply
    9,125.14x = 12,589.76 × 7,204.87
  4. Step 4: Simplify right side
    9,125.14x = 90,707,584.13
  5. Step 5: Solve for x
    x = 90,707,584.13/9,125.14
  6. Step 6: Final answer
    x = 9,940.40

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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.