Home / 10,177.28-15,266.10-6,689.51

Finding the Fourth Proportional to 10,177.28, 15,266.10 and 6,689.51

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Solution

The fourth proportional to 10,177.28, 15,266.10 and 6,689.51 is: 10,034.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,177.28 : 15,266.10 = 6,689.51 : x
  2. Step 2: Convert to fraction form
    10,177.28/15,266.10 = 6,689.51/x
  3. Step 3: Cross multiply
    10,177.28x = 15,266.10 × 6,689.51
  4. Step 4: Simplify right side
    10,177.28x = 102,122,652.28
  5. Step 5: Solve for x
    x = 102,122,652.28/10,177.28
  6. Step 6: Final answer
    x = 10,034.38

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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.