Home / 9,338.12-12,886.74-5,146.28

Finding the Fourth Proportional to 9,338.12, 12,886.74 and 5,146.28

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Solution

The fourth proportional to 9,338.12, 12,886.74 and 5,146.28 is: 7,101.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,338.12 : 12,886.74 = 5,146.28 : x
  2. Step 2: Convert to fraction form
    9,338.12/12,886.74 = 5,146.28/x
  3. Step 3: Cross multiply
    9,338.12x = 12,886.74 × 5,146.28
  4. Step 4: Simplify right side
    9,338.12x = 66,318,772.33
  5. Step 5: Solve for x
    x = 66,318,772.33/9,338.12
  6. Step 6: Final answer
    x = 7,101.94

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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.