Home / 8,960.40-12,360.62-5,324.38

Finding the Fourth Proportional to 8,960.40, 12,360.62 and 5,324.38

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Solution

The fourth proportional to 8,960.40, 12,360.62 and 5,324.38 is: 7,344.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,960.40 : 12,360.62 = 5,324.38 : x
  2. Step 2: Convert to fraction form
    8,960.40/12,360.62 = 5,324.38/x
  3. Step 3: Cross multiply
    8,960.40x = 12,360.62 × 5,324.38
  4. Step 4: Simplify right side
    8,960.40x = 65,812,637.92
  5. Step 5: Solve for x
    x = 65,812,637.92/8,960.40
  6. Step 6: Final answer
    x = 7,344.83

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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.