Home / 6,351.12-9,569.64-5,279.40

Finding the Fourth Proportional to 6,351.12, 9,569.64 and 5,279.40

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Solution

The fourth proportional to 6,351.12, 9,569.64 and 5,279.40 is: 7,954.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,351.12 : 9,569.64 = 5,279.40 : x
  2. Step 2: Convert to fraction form
    6,351.12/9,569.64 = 5,279.40/x
  3. Step 3: Cross multiply
    6,351.12x = 9,569.64 × 5,279.40
  4. Step 4: Simplify right side
    6,351.12x = 50,521,957.42
  5. Step 5: Solve for x
    x = 50,521,957.42/6,351.12
  6. Step 6: Final answer
    x = 7,954.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.