Home / 10,942.20-16,433.10-9,581.40

Finding the Fourth Proportional to 10,942.20, 16,433.10 and 9,581.40

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Solution

The fourth proportional to 10,942.20, 16,433.10 and 9,581.40 is: 14,389.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,942.20 : 16,433.10 = 9,581.40 : x
  2. Step 2: Convert to fraction form
    10,942.20/16,433.10 = 9,581.40/x
  3. Step 3: Cross multiply
    10,942.20x = 16,433.10 × 9,581.40
  4. Step 4: Simplify right side
    10,942.20x = 157,452,104.34
  5. Step 5: Solve for x
    x = 157,452,104.34/10,942.20
  6. Step 6: Final answer
    x = 14,389.44

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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.