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Finding the Fourth Proportional to 26,320, 39,486.24 and 7,852.48

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Solution

The fourth proportional to 26,320, 39,486.24 and 7,852.48 is: 11,780.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,320 : 39,486.24 = 7,852.48 : x
  2. Step 2: Convert to fraction form
    26,320/39,486.24 = 7,852.48/x
  3. Step 3: Cross multiply
    26,320x = 39,486.24 × 7,852.48
  4. Step 4: Simplify right side
    26,320x = 310,064,909.88
  5. Step 5: Solve for x
    x = 310,064,909.88/26,320
  6. Step 6: Final answer
    x = 11,780.58

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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.