Home / 12,147.32-18,220.98-8,795.10

Finding the Fourth Proportional to 12,147.32, 18,220.98 and 8,795.10

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Solution

The fourth proportional to 12,147.32, 18,220.98 and 8,795.10 is: 13,192.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,147.32 : 18,220.98 = 8,795.10 : x
  2. Step 2: Convert to fraction form
    12,147.32/18,220.98 = 8,795.10/x
  3. Step 3: Cross multiply
    12,147.32x = 18,220.98 × 8,795.10
  4. Step 4: Simplify right side
    12,147.32x = 160,255,341.20
  5. Step 5: Solve for x
    x = 160,255,341.20/12,147.32
  6. Step 6: Final answer
    x = 13,192.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.