Home / 9,338.55-12,887.01-5,146.80

Finding the Fourth Proportional to 9,338.55, 12,887.01 and 5,146.80

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Solution

The fourth proportional to 9,338.55, 12,887.01 and 5,146.80 is: 7,102.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,338.55 : 12,887.01 = 5,146.80 : x
  2. Step 2: Convert to fraction form
    9,338.55/12,887.01 = 5,146.80/x
  3. Step 3: Cross multiply
    9,338.55x = 12,887.01 × 5,146.80
  4. Step 4: Simplify right side
    9,338.55x = 66,326,863.07
  5. Step 5: Solve for x
    x = 66,326,863.07/9,338.55
  6. Step 6: Final answer
    x = 7,102.48

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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.