Home / 10,146.39-15,220.26-3,125.97

Finding the Fourth Proportional to 10,146.39, 15,220.26 and 3,125.97

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Solution

The fourth proportional to 10,146.39, 15,220.26 and 3,125.97 is: 4,689.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,146.39 : 15,220.26 = 3,125.97 : x
  2. Step 2: Convert to fraction form
    10,146.39/15,220.26 = 3,125.97/x
  3. Step 3: Cross multiply
    10,146.39x = 15,220.26 × 3,125.97
  4. Step 4: Simplify right side
    10,146.39x = 47,578,076.15
  5. Step 5: Solve for x
    x = 47,578,076.15/10,146.39
  6. Step 6: Final answer
    x = 4,689.16

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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.