Home / 18,115.96-24,995.64-10,557.76

Finding the Fourth Proportional to 18,115.96, 24,995.64 and 10,557.76

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Solution

The fourth proportional to 18,115.96, 24,995.64 and 10,557.76 is: 14,567.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.96 : 24,995.64 = 10,557.76 : x
  2. Step 2: Convert to fraction form
    18,115.96/24,995.64 = 10,557.76/x
  3. Step 3: Cross multiply
    18,115.96x = 24,995.64 × 10,557.76
  4. Step 4: Simplify right side
    18,115.96x = 263,897,968.17
  5. Step 5: Solve for x
    x = 263,897,968.17/18,115.96
  6. Step 6: Final answer
    x = 14,567.15

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Half scale
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Double scale
Find fourth proportional to 18,116.96, 24,997.02 and 10,558.76
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.