Home / 10,085.19-15,113.91-5,144.43

Finding the Fourth Proportional to 10,085.19, 15,113.91 and 5,144.43

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Solution

The fourth proportional to 10,085.19, 15,113.91 and 5,144.43 is: 7,709.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,085.19 : 15,113.91 = 5,144.43 : x
  2. Step 2: Convert to fraction form
    10,085.19/15,113.91 = 5,144.43/x
  3. Step 3: Cross multiply
    10,085.19x = 15,113.91 × 5,144.43
  4. Step 4: Simplify right side
    10,085.19x = 77,752,452.02
  5. Step 5: Solve for x
    x = 77,752,452.02/10,085.19
  6. Step 6: Final answer
    x = 7,709.57

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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.