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Finding the Fourth Proportional to 26,663.34, 39,981.59 and 8,887.71

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Solution

The fourth proportional to 26,663.34, 39,981.59 and 8,887.71 is: 13,327.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,663.34 : 39,981.59 = 8,887.71 : x
  2. Step 2: Convert to fraction form
    26,663.34/39,981.59 = 8,887.71/x
  3. Step 3: Cross multiply
    26,663.34x = 39,981.59 × 8,887.71
  4. Step 4: Simplify right side
    26,663.34x = 355,344,777.26
  5. Step 5: Solve for x
    x = 355,344,777.26/26,663.34
  6. Step 6: Final answer
    x = 13,327.09

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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.