Home / 15,146.34-22,708.42-7,138.38

Finding the Fourth Proportional to 15,146.34, 22,708.42 and 7,138.38

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Solution

The fourth proportional to 15,146.34, 22,708.42 and 7,138.38 is: 10,702.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,146.34 : 22,708.42 = 7,138.38 : x
  2. Step 2: Convert to fraction form
    15,146.34/22,708.42 = 7,138.38/x
  3. Step 3: Cross multiply
    15,146.34x = 22,708.42 × 7,138.38
  4. Step 4: Simplify right side
    15,146.34x = 162,101,331.16
  5. Step 5: Solve for x
    x = 162,101,331.16/15,146.34
  6. Step 6: Final answer
    x = 10,702.34

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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.