Home / 9,375.40-12,938.07-5,126.48

Finding the Fourth Proportional to 9,375.40, 12,938.07 and 5,126.48

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Solution

The fourth proportional to 9,375.40, 12,938.07 and 5,126.48 is: 7,074.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,375.40 : 12,938.07 = 5,126.48 : x
  2. Step 2: Convert to fraction form
    9,375.40/12,938.07 = 5,126.48/x
  3. Step 3: Cross multiply
    9,375.40x = 12,938.07 × 5,126.48
  4. Step 4: Simplify right side
    9,375.40x = 66,326,731.46
  5. Step 5: Solve for x
    x = 66,326,731.46/9,375.40
  6. Step 6: Final answer
    x = 7,074.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.