Home / 6,446.76-9,686.28-4,107.76

Finding the Fourth Proportional to 6,446.76, 9,686.28 and 4,107.76

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Solution

The fourth proportional to 6,446.76, 9,686.28 and 4,107.76 is: 6,171.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,446.76 : 9,686.28 = 4,107.76 : x
  2. Step 2: Convert to fraction form
    6,446.76/9,686.28 = 4,107.76/x
  3. Step 3: Cross multiply
    6,446.76x = 9,686.28 × 4,107.76
  4. Step 4: Simplify right side
    6,446.76x = 39,788,913.53
  5. Step 5: Solve for x
    x = 39,788,913.53/6,446.76
  6. Step 6: Final answer
    x = 6,171.92

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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.