Home / 10,187.70-15,279.85-3,612.41

Finding the Fourth Proportional to 10,187.70, 15,279.85 and 3,612.41

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Solution

The fourth proportional to 10,187.70, 15,279.85 and 3,612.41 is: 5,418.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,187.70 : 15,279.85 = 3,612.41 : x
  2. Step 2: Convert to fraction form
    10,187.70/15,279.85 = 3,612.41/x
  3. Step 3: Cross multiply
    10,187.70x = 15,279.85 × 3,612.41
  4. Step 4: Simplify right side
    10,187.70x = 55,197,082.94
  5. Step 5: Solve for x
    x = 55,197,082.94/10,187.70
  6. Step 6: Final answer
    x = 5,418.01

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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.