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Finding the Fourth Proportional to 10,361.40, 15,542.10 and 5,744.40

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Solution

The fourth proportional to 10,361.40, 15,542.10 and 5,744.40 is: 8,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,361.40 : 15,542.10 = 5,744.40 : x
  2. Step 2: Convert to fraction form
    10,361.40/15,542.10 = 5,744.40/x
  3. Step 3: Cross multiply
    10,361.40x = 15,542.10 × 5,744.40
  4. Step 4: Simplify right side
    10,361.40x = 89,280,039.24
  5. Step 5: Solve for x
    x = 89,280,039.24/10,361.40
  6. Step 6: Final answer
    x = 8,616.60

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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.