Home / 9,478.96-13,081.05-5,230.21

Finding the Fourth Proportional to 9,478.96, 13,081.05 and 5,230.21

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Solution

The fourth proportional to 9,478.96, 13,081.05 and 5,230.21 is: 7,217.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,478.96 : 13,081.05 = 5,230.21 : x
  2. Step 2: Convert to fraction form
    9,478.96/13,081.05 = 5,230.21/x
  3. Step 3: Cross multiply
    9,478.96x = 13,081.05 × 5,230.21
  4. Step 4: Simplify right side
    9,478.96x = 68,416,638.52
  5. Step 5: Solve for x
    x = 68,416,638.52/9,478.96
  6. Step 6: Final answer
    x = 7,217.74

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Similar ratio
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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.