Home / 10,143.35-15,220.49-4,949.23

Finding the Fourth Proportional to 10,143.35, 15,220.49 and 4,949.23

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Solution

The fourth proportional to 10,143.35, 15,220.49 and 4,949.23 is: 7,426.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.35 : 15,220.49 = 4,949.23 : x
  2. Step 2: Convert to fraction form
    10,143.35/15,220.49 = 4,949.23/x
  3. Step 3: Cross multiply
    10,143.35x = 15,220.49 × 4,949.23
  4. Step 4: Simplify right side
    10,143.35x = 75,329,677.38
  5. Step 5: Solve for x
    x = 75,329,677.38/10,143.35
  6. Step 6: Final answer
    x = 7,426.51

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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.