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Finding the Fourth Proportional to 26,648.70, 39,945.51 and 9,996.99

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Solution

The fourth proportional to 26,648.70, 39,945.51 and 9,996.99 is: 14,985.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,648.70 : 39,945.51 = 9,996.99 : x
  2. Step 2: Convert to fraction form
    26,648.70/39,945.51 = 9,996.99/x
  3. Step 3: Cross multiply
    26,648.70x = 39,945.51 × 9,996.99
  4. Step 4: Simplify right side
    26,648.70x = 399,334,864.01
  5. Step 5: Solve for x
    x = 399,334,864.01/26,648.70
  6. Step 6: Final answer
    x = 14,985.15

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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.