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Finding the Fourth Proportional to 26,599.89, 39,896.08 and 7,881.91

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Solution

The fourth proportional to 26,599.89, 39,896.08 and 7,881.91 is: 11,821.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,599.89 : 39,896.08 = 7,881.91 : x
  2. Step 2: Convert to fraction form
    26,599.89/39,896.08 = 7,881.91/x
  3. Step 3: Cross multiply
    26,599.89x = 39,896.08 × 7,881.91
  4. Step 4: Simplify right side
    26,599.89x = 314,457,192.47
  5. Step 5: Solve for x
    x = 314,457,192.47/26,599.89
  6. Step 6: Final answer
    x = 11,821.75

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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.