Home / 8,140.24-12,200.10-4,434.76

Finding the Fourth Proportional to 8,140.24, 12,200.10 and 4,434.76

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Solution

The fourth proportional to 8,140.24, 12,200.10 and 4,434.76 is: 6,646.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.24 : 12,200.10 = 4,434.76 : x
  2. Step 2: Convert to fraction form
    8,140.24/12,200.10 = 4,434.76/x
  3. Step 3: Cross multiply
    8,140.24x = 12,200.10 × 4,434.76
  4. Step 4: Simplify right side
    8,140.24x = 54,104,515.48
  5. Step 5: Solve for x
    x = 54,104,515.48/8,140.24
  6. Step 6: Final answer
    x = 6,646.55

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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.