Home / 10,146.30-15,220.89-3,126.90

Finding the Fourth Proportional to 10,146.30, 15,220.89 and 3,126.90

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Solution

The fourth proportional to 10,146.30, 15,220.89 and 3,126.90 is: 4,690.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,146.30 : 15,220.89 = 3,126.90 : x
  2. Step 2: Convert to fraction form
    10,146.30/15,220.89 = 3,126.90/x
  3. Step 3: Cross multiply
    10,146.30x = 15,220.89 × 3,126.90
  4. Step 4: Simplify right side
    10,146.30x = 47,594,200.94
  5. Step 5: Solve for x
    x = 47,594,200.94/10,146.30
  6. Step 6: Final answer
    x = 4,690.79

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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.