Home / 10,127.47-15,191.67-3,106.97

Finding the Fourth Proportional to 10,127.47, 15,191.67 and 3,106.97

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Solution

The fourth proportional to 10,127.47, 15,191.67 and 3,106.97 is: 4,660.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.47 : 15,191.67 = 3,106.97 : x
  2. Step 2: Convert to fraction form
    10,127.47/15,191.67 = 3,106.97/x
  3. Step 3: Cross multiply
    10,127.47x = 15,191.67 × 3,106.97
  4. Step 4: Simplify right side
    10,127.47x = 47,200,062.94
  5. Step 5: Solve for x
    x = 47,200,062.94/10,127.47
  6. Step 6: Final answer
    x = 4,660.60

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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.