Home / 9,339.52-12,888.60-5,147.84

Finding the Fourth Proportional to 9,339.52, 12,888.60 and 5,147.84

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Solution

The fourth proportional to 9,339.52, 12,888.60 and 5,147.84 is: 7,104.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,339.52 : 12,888.60 = 5,147.84 : x
  2. Step 2: Convert to fraction form
    9,339.52/12,888.60 = 5,147.84/x
  3. Step 3: Cross multiply
    9,339.52x = 12,888.60 × 5,147.84
  4. Step 4: Simplify right side
    9,339.52x = 66,348,450.62
  5. Step 5: Solve for x
    x = 66,348,450.62/9,339.52
  6. Step 6: Final answer
    x = 7,104.05

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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.