Home / 13,330.88-19,996.32-5,117.12

Finding the Fourth Proportional to 13,330.88, 19,996.32 and 5,117.12

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Solution

The fourth proportional to 13,330.88, 19,996.32 and 5,117.12 is: 7,675.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.88 : 19,996.32 = 5,117.12 : x
  2. Step 2: Convert to fraction form
    13,330.88/19,996.32 = 5,117.12/x
  3. Step 3: Cross multiply
    13,330.88x = 19,996.32 × 5,117.12
  4. Step 4: Simplify right side
    13,330.88x = 102,323,569.00
  5. Step 5: Solve for x
    x = 102,323,569.00/13,330.88
  6. Step 6: Final answer
    x = 7,675.68

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Half scale
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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.