Home / 7,982.43-11,010.78-5,709.57

Finding the Fourth Proportional to 7,982.43, 11,010.78 and 5,709.57

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Solution

The fourth proportional to 7,982.43, 11,010.78 and 5,709.57 is: 7,875.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.43 : 11,010.78 = 5,709.57 : x
  2. Step 2: Convert to fraction form
    7,982.43/11,010.78 = 5,709.57/x
  3. Step 3: Cross multiply
    7,982.43x = 11,010.78 × 5,709.57
  4. Step 4: Simplify right side
    7,982.43x = 62,866,819.16
  5. Step 5: Solve for x
    x = 62,866,819.16/7,982.43
  6. Step 6: Final answer
    x = 7,875.65

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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.