Home / 9,125.51-12,591.04-5,540.39

Finding the Fourth Proportional to 9,125.51, 12,591.04 and 5,540.39

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Solution

The fourth proportional to 9,125.51, 12,591.04 and 5,540.39 is: 7,644.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.51 : 12,591.04 = 5,540.39 : x
  2. Step 2: Convert to fraction form
    9,125.51/12,591.04 = 5,540.39/x
  3. Step 3: Cross multiply
    9,125.51x = 12,591.04 × 5,540.39
  4. Step 4: Simplify right side
    9,125.51x = 69,759,272.11
  5. Step 5: Solve for x
    x = 69,759,272.11/9,125.51
  6. Step 6: Final answer
    x = 7,644.42

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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.