Home / 10,971.70-16,438.38-9,134.62

Finding the Fourth Proportional to 10,971.70, 16,438.38 and 9,134.62

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Solution

The fourth proportional to 10,971.70, 16,438.38 and 9,134.62 is: 13,685.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.70 : 16,438.38 = 9,134.62 : x
  2. Step 2: Convert to fraction form
    10,971.70/16,438.38 = 9,134.62/x
  3. Step 3: Cross multiply
    10,971.70x = 16,438.38 × 9,134.62
  4. Step 4: Simplify right side
    10,971.70x = 150,158,354.72
  5. Step 5: Solve for x
    x = 150,158,354.72/10,971.70
  6. Step 6: Final answer
    x = 13,685.97

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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.