Home / 8,265.24-12,390.57-6,143.85

Finding the Fourth Proportional to 8,265.24, 12,390.57 and 6,143.85

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Solution

The fourth proportional to 8,265.24, 12,390.57 and 6,143.85 is: 9,210.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,265.24 : 12,390.57 = 6,143.85 : x
  2. Step 2: Convert to fraction form
    8,265.24/12,390.57 = 6,143.85/x
  3. Step 3: Cross multiply
    8,265.24x = 12,390.57 × 6,143.85
  4. Step 4: Simplify right side
    8,265.24x = 76,125,803.49
  5. Step 5: Solve for x
    x = 76,125,803.49/8,265.24
  6. Step 6: Final answer
    x = 9,210.36

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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.