Home / 8,078.40-12,127.68-5,901.12

Finding the Fourth Proportional to 8,078.40, 12,127.68 and 5,901.12

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Solution

The fourth proportional to 8,078.40, 12,127.68 and 5,901.12 is: 8,859.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.40 : 12,127.68 = 5,901.12 : x
  2. Step 2: Convert to fraction form
    8,078.40/12,127.68 = 5,901.12/x
  3. Step 3: Cross multiply
    8,078.40x = 12,127.68 × 5,901.12
  4. Step 4: Simplify right side
    8,078.40x = 71,566,895.00
  5. Step 5: Solve for x
    x = 71,566,895.00/8,078.40
  6. Step 6: Final answer
    x = 8,859.04

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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.