Home / 9,812.38-13,531.78-7,570.70

Finding the Fourth Proportional to 9,812.38, 13,531.78 and 7,570.70

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Solution

The fourth proportional to 9,812.38, 13,531.78 and 7,570.70 is: 10,440.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,812.38 : 13,531.78 = 7,570.70 : x
  2. Step 2: Convert to fraction form
    9,812.38/13,531.78 = 7,570.70/x
  3. Step 3: Cross multiply
    9,812.38x = 13,531.78 × 7,570.70
  4. Step 4: Simplify right side
    9,812.38x = 102,445,046.85
  5. Step 5: Solve for x
    x = 102,445,046.85/9,812.38
  6. Step 6: Final answer
    x = 10,440.39

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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.