Home / 9,312.93-12,851.97-5,121.18

Finding the Fourth Proportional to 9,312.93, 12,851.97 and 5,121.18

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Solution

The fourth proportional to 9,312.93, 12,851.97 and 5,121.18 is: 7,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,312.93 : 12,851.97 = 5,121.18 : x
  2. Step 2: Convert to fraction form
    9,312.93/12,851.97 = 5,121.18/x
  3. Step 3: Cross multiply
    9,312.93x = 12,851.97 × 5,121.18
  4. Step 4: Simplify right side
    9,312.93x = 65,817,251.72
  5. Step 5: Solve for x
    x = 65,817,251.72/9,312.93
  6. Step 6: Final answer
    x = 7,067.30

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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.