Home / 9,124.08-12,590.92-5,144.80

Finding the Fourth Proportional to 9,124.08, 12,590.92 and 5,144.80

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Solution

The fourth proportional to 9,124.08, 12,590.92 and 5,144.80 is: 7,099.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,124.08 : 12,590.92 = 5,144.80 : x
  2. Step 2: Convert to fraction form
    9,124.08/12,590.92 = 5,144.80/x
  3. Step 3: Cross multiply
    9,124.08x = 12,590.92 × 5,144.80
  4. Step 4: Simplify right side
    9,124.08x = 64,777,765.22
  5. Step 5: Solve for x
    x = 64,777,765.22/9,124.08
  6. Step 6: Final answer
    x = 7,099.65

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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.