Home / 10,660.50-14,711.55-5,815.20

Finding the Fourth Proportional to 10,660.50, 14,711.55 and 5,815.20

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Solution

The fourth proportional to 10,660.50, 14,711.55 and 5,815.20 is: 8,025.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.50 : 14,711.55 = 5,815.20 : x
  2. Step 2: Convert to fraction form
    10,660.50/14,711.55 = 5,815.20/x
  3. Step 3: Cross multiply
    10,660.50x = 14,711.55 × 5,815.20
  4. Step 4: Simplify right side
    10,660.50x = 85,550,605.56
  5. Step 5: Solve for x
    x = 85,550,605.56/10,660.50
  6. Step 6: Final answer
    x = 8,025.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.