Home / 8,356.48-11,517.51-7,287.58

Finding the Fourth Proportional to 8,356.48, 11,517.51 and 7,287.58

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Solution

The fourth proportional to 8,356.48, 11,517.51 and 7,287.58 is: 10,044.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,356.48 : 11,517.51 = 7,287.58 : x
  2. Step 2: Convert to fraction form
    8,356.48/11,517.51 = 7,287.58/x
  3. Step 3: Cross multiply
    8,356.48x = 11,517.51 × 7,287.58
  4. Step 4: Simplify right side
    8,356.48x = 83,934,775.53
  5. Step 5: Solve for x
    x = 83,934,775.53/8,356.48
  6. Step 6: Final answer
    x = 10,044.27

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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.