Home / 7,726.08-10,660.80-5,074.56

Finding the Fourth Proportional to 7,726.08, 10,660.80 and 5,074.56

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Solution

The fourth proportional to 7,726.08, 10,660.80 and 5,074.56 is: 7,002.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.08 : 10,660.80 = 5,074.56 : x
  2. Step 2: Convert to fraction form
    7,726.08/10,660.80 = 5,074.56/x
  3. Step 3: Cross multiply
    7,726.08x = 10,660.80 × 5,074.56
  4. Step 4: Simplify right side
    7,726.08x = 54,098,869.25
  5. Step 5: Solve for x
    x = 54,098,869.25/7,726.08
  6. Step 6: Final answer
    x = 7,002.11

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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.