Home / 11,821.10-17,731.64-3,501.18

Finding the Fourth Proportional to 11,821.10, 17,731.64 and 3,501.18

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Solution

The fourth proportional to 11,821.10, 17,731.64 and 3,501.18 is: 5,251.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.10 : 17,731.64 = 3,501.18 : x
  2. Step 2: Convert to fraction form
    11,821.10/17,731.64 = 3,501.18/x
  3. Step 3: Cross multiply
    11,821.10x = 17,731.64 × 3,501.18
  4. Step 4: Simplify right side
    11,821.10x = 62,081,663.34
  5. Step 5: Solve for x
    x = 62,081,663.34/11,821.10
  6. Step 6: Final answer
    x = 5,251.77

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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.