Home / 15,143.92-22,719.48-4,755.64

Finding the Fourth Proportional to 15,143.92, 22,719.48 and 4,755.64

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Solution

The fourth proportional to 15,143.92, 22,719.48 and 4,755.64 is: 7,134.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,143.92 : 22,719.48 = 4,755.64 : x
  2. Step 2: Convert to fraction form
    15,143.92/22,719.48 = 4,755.64/x
  3. Step 3: Cross multiply
    15,143.92x = 22,719.48 × 4,755.64
  4. Step 4: Simplify right side
    15,143.92x = 108,045,667.87
  5. Step 5: Solve for x
    x = 108,045,667.87/15,143.92
  6. Step 6: Final answer
    x = 7,134.59

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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.