Home / 16,190.30-22,340.12-9,115.22

Finding the Fourth Proportional to 16,190.30, 22,340.12 and 9,115.22

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Solution

The fourth proportional to 16,190.30, 22,340.12 and 9,115.22 is: 12,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,190.30 : 22,340.12 = 9,115.22 : x
  2. Step 2: Convert to fraction form
    16,190.30/22,340.12 = 9,115.22/x
  3. Step 3: Cross multiply
    16,190.30x = 22,340.12 × 9,115.22
  4. Step 4: Simplify right side
    16,190.30x = 203,635,108.63
  5. Step 5: Solve for x
    x = 203,635,108.63/16,190.30
  6. Step 6: Final answer
    x = 12,577.60

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Half scale
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Double scale
Find fourth proportional to 16,191.30, 22,341.50 and 9,116.22
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.