Home / 10,958.55-15,117.38-6,869.62

Finding the Fourth Proportional to 10,958.55, 15,117.38 and 6,869.62

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Solution

The fourth proportional to 10,958.55, 15,117.38 and 6,869.62 is: 9,476.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,958.55 : 15,117.38 = 6,869.62 : x
  2. Step 2: Convert to fraction form
    10,958.55/15,117.38 = 6,869.62/x
  3. Step 3: Cross multiply
    10,958.55x = 15,117.38 × 6,869.62
  4. Step 4: Simplify right side
    10,958.55x = 103,850,635.38
  5. Step 5: Solve for x
    x = 103,850,635.38/10,958.55
  6. Step 6: Final answer
    x = 9,476.68

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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.