Home / 14,007.21-19,321.45-8,338.17

Finding the Fourth Proportional to 14,007.21, 19,321.45 and 8,338.17

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Solution

The fourth proportional to 14,007.21, 19,321.45 and 8,338.17 is: 11,501.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.21 : 19,321.45 = 8,338.17 : x
  2. Step 2: Convert to fraction form
    14,007.21/19,321.45 = 8,338.17/x
  3. Step 3: Cross multiply
    14,007.21x = 19,321.45 × 8,338.17
  4. Step 4: Simplify right side
    14,007.21x = 161,105,534.75
  5. Step 5: Solve for x
    x = 161,105,534.75/14,007.21
  6. Step 6: Final answer
    x = 11,501.61

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.