Home / 7,874.16-10,854.36-5,351.28

Finding the Fourth Proportional to 7,874.16, 10,854.36 and 5,351.28

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Solution

The fourth proportional to 7,874.16, 10,854.36 and 5,351.28 is: 7,376.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,874.16 : 10,854.36 = 5,351.28 : x
  2. Step 2: Convert to fraction form
    7,874.16/10,854.36 = 5,351.28/x
  3. Step 3: Cross multiply
    7,874.16x = 10,854.36 × 5,351.28
  4. Step 4: Simplify right side
    7,874.16x = 58,084,719.58
  5. Step 5: Solve for x
    x = 58,084,719.58/7,874.16
  6. Step 6: Final answer
    x = 7,376.62

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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.