Home / 10,451.90-15,677.91-2,660.72

Finding the Fourth Proportional to 10,451.90, 15,677.91 and 2,660.72

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Solution

The fourth proportional to 10,451.90, 15,677.91 and 2,660.72 is: 3,991.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,451.90 : 15,677.91 = 2,660.72 : x
  2. Step 2: Convert to fraction form
    10,451.90/15,677.91 = 2,660.72/x
  3. Step 3: Cross multiply
    10,451.90x = 15,677.91 × 2,660.72
  4. Step 4: Simplify right side
    10,451.90x = 41,714,528.70
  5. Step 5: Solve for x
    x = 41,714,528.70/10,451.90
  6. Step 6: Final answer
    x = 3,991.10

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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.