Home / 10,143.38-15,204.60-4,223.70

Finding the Fourth Proportional to 10,143.38, 15,204.60 and 4,223.70

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Solution

The fourth proportional to 10,143.38, 15,204.60 and 4,223.70 is: 6,331.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.38 : 15,204.60 = 4,223.70 : x
  2. Step 2: Convert to fraction form
    10,143.38/15,204.60 = 4,223.70/x
  3. Step 3: Cross multiply
    10,143.38x = 15,204.60 × 4,223.70
  4. Step 4: Simplify right side
    10,143.38x = 64,219,669.02
  5. Step 5: Solve for x
    x = 64,219,669.02/10,143.38
  6. Step 6: Final answer
    x = 6,331.19

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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.