Home / 10,660.38-15,991.47-2,869.62

Finding the Fourth Proportional to 10,660.38, 15,991.47 and 2,869.62

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Solution

The fourth proportional to 10,660.38, 15,991.47 and 2,869.62 is: 4,304.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.38 : 15,991.47 = 2,869.62 : x
  2. Step 2: Convert to fraction form
    10,660.38/15,991.47 = 2,869.62/x
  3. Step 3: Cross multiply
    10,660.38x = 15,991.47 × 2,869.62
  4. Step 4: Simplify right side
    10,660.38x = 45,889,442.14
  5. Step 5: Solve for x
    x = 45,889,442.14/10,660.38
  6. Step 6: Final answer
    x = 4,304.67

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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.