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Finding the Fourth Proportional to 10,053.81, 15,080.76 and 2,658.20

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Solution

The fourth proportional to 10,053.81, 15,080.76 and 2,658.20 is: 3,987.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,053.81 : 15,080.76 = 2,658.20 : x
  2. Step 2: Convert to fraction form
    10,053.81/15,080.76 = 2,658.20/x
  3. Step 3: Cross multiply
    10,053.81x = 15,080.76 × 2,658.20
  4. Step 4: Simplify right side
    10,053.81x = 40,087,600.83
  5. Step 5: Solve for x
    x = 40,087,600.83/10,053.81
  6. Step 6: Final answer
    x = 3,987.30

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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.