Home / 10,941.20-16,419.90-7,242.20

Finding the Fourth Proportional to 10,941.20, 16,419.90 and 7,242.20

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Solution

The fourth proportional to 10,941.20, 16,419.90 and 7,242.20 is: 10,868.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,941.20 : 16,419.90 = 7,242.20 : x
  2. Step 2: Convert to fraction form
    10,941.20/16,419.90 = 7,242.20/x
  3. Step 3: Cross multiply
    10,941.20x = 16,419.90 × 7,242.20
  4. Step 4: Simplify right side
    10,941.20x = 118,916,199.78
  5. Step 5: Solve for x
    x = 118,916,199.78/10,941.20
  6. Step 6: Final answer
    x = 10,868.66

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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.