Home / 9,207.07-12,710.57-7,158.43

Finding the Fourth Proportional to 9,207.07, 12,710.57 and 7,158.43

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Solution

The fourth proportional to 9,207.07, 12,710.57 and 7,158.43 is: 9,882.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,207.07 : 12,710.57 = 7,158.43 : x
  2. Step 2: Convert to fraction form
    9,207.07/12,710.57 = 7,158.43/x
  3. Step 3: Cross multiply
    9,207.07x = 12,710.57 × 7,158.43
  4. Step 4: Simplify right side
    9,207.07x = 90,987,705.70
  5. Step 5: Solve for x
    x = 90,987,705.70/9,207.07
  6. Step 6: Final answer
    x = 9,882.37

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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.