Home / 10,195.57-15,294.88-3,621.21

Finding the Fourth Proportional to 10,195.57, 15,294.88 and 3,621.21

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Solution

The fourth proportional to 10,195.57, 15,294.88 and 3,621.21 is: 5,432.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,195.57 : 15,294.88 = 3,621.21 : x
  2. Step 2: Convert to fraction form
    10,195.57/15,294.88 = 3,621.21/x
  3. Step 3: Cross multiply
    10,195.57x = 15,294.88 × 3,621.21
  4. Step 4: Simplify right side
    10,195.57x = 55,385,972.40
  5. Step 5: Solve for x
    x = 55,385,972.40/10,195.57
  6. Step 6: Final answer
    x = 5,432.36

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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.