Home / 9,220.38-12,720.08-6,235.12

Finding the Fourth Proportional to 9,220.38, 12,720.08 and 6,235.12

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Solution

The fourth proportional to 9,220.38, 12,720.08 and 6,235.12 is: 8,601.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,220.38 : 12,720.08 = 6,235.12 : x
  2. Step 2: Convert to fraction form
    9,220.38/12,720.08 = 6,235.12/x
  3. Step 3: Cross multiply
    9,220.38x = 12,720.08 × 6,235.12
  4. Step 4: Simplify right side
    9,220.38x = 79,311,225.21
  5. Step 5: Solve for x
    x = 79,311,225.21/9,220.38
  6. Step 6: Final answer
    x = 8,601.73

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Half scale
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Double scale
Find fourth proportional to 9,221.38, 12,721.46 and 6,236.12
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.