Home / 10,129.82-15,189.03-6,970.97

Finding the Fourth Proportional to 10,129.82, 15,189.03 and 6,970.97

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Solution

The fourth proportional to 10,129.82, 15,189.03 and 6,970.97 is: 10,452.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.82 : 15,189.03 = 6,970.97 : x
  2. Step 2: Convert to fraction form
    10,129.82/15,189.03 = 6,970.97/x
  3. Step 3: Cross multiply
    10,129.82x = 15,189.03 × 6,970.97
  4. Step 4: Simplify right side
    10,129.82x = 105,882,272.46
  5. Step 5: Solve for x
    x = 105,882,272.46/10,129.82
  6. Step 6: Final answer
    x = 10,452.53

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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.