Home / 9,322.88-12,865.85-5,131.13

Finding the Fourth Proportional to 9,322.88, 12,865.85 and 5,131.13

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Solution

The fourth proportional to 9,322.88, 12,865.85 and 5,131.13 is: 7,081.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,322.88 : 12,865.85 = 5,131.13 : x
  2. Step 2: Convert to fraction form
    9,322.88/12,865.85 = 5,131.13/x
  3. Step 3: Cross multiply
    9,322.88x = 12,865.85 × 5,131.13
  4. Step 4: Simplify right side
    9,322.88x = 66,016,258.93
  5. Step 5: Solve for x
    x = 66,016,258.93/9,322.88
  6. Step 6: Final answer
    x = 7,081.11

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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.