Home / 11,214.15-15,481.04-8,703.69

Finding the Fourth Proportional to 11,214.15, 15,481.04 and 8,703.69

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Solution

The fourth proportional to 11,214.15, 15,481.04 and 8,703.69 is: 12,015.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,214.15 : 15,481.04 = 8,703.69 : x
  2. Step 2: Convert to fraction form
    11,214.15/15,481.04 = 8,703.69/x
  3. Step 3: Cross multiply
    11,214.15x = 15,481.04 × 8,703.69
  4. Step 4: Simplify right side
    11,214.15x = 134,742,129.52
  5. Step 5: Solve for x
    x = 134,742,129.52/11,214.15
  6. Step 6: Final answer
    x = 12,015.37

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Double scale
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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.