Home / 9,338.24-12,886.72-5,146.24

Finding the Fourth Proportional to 9,338.24, 12,886.72 and 5,146.24

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Solution

The fourth proportional to 9,338.24, 12,886.72 and 5,146.24 is: 7,101.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,338.24 : 12,886.72 = 5,146.24 : x
  2. Step 2: Convert to fraction form
    9,338.24/12,886.72 = 5,146.24/x
  3. Step 3: Cross multiply
    9,338.24x = 12,886.72 × 5,146.24
  4. Step 4: Simplify right side
    9,338.24x = 66,318,153.93
  5. Step 5: Solve for x
    x = 66,318,153.93/9,338.24
  6. Step 6: Final answer
    x = 7,101.78

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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.