Home / 12,010.32-18,015.48-10,239.12

Finding the Fourth Proportional to 12,010.32, 18,015.48 and 10,239.12

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Solution

The fourth proportional to 12,010.32, 18,015.48 and 10,239.12 is: 15,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,010.32 : 18,015.48 = 10,239.12 : x
  2. Step 2: Convert to fraction form
    12,010.32/18,015.48 = 10,239.12/x
  3. Step 3: Cross multiply
    12,010.32x = 18,015.48 × 10,239.12
  4. Step 4: Simplify right side
    12,010.32x = 184,462,661.58
  5. Step 5: Solve for x
    x = 184,462,661.58/12,010.32
  6. Step 6: Final answer
    x = 15,358.68

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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.