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Finding the Fourth Proportional to 26,599.32, 39,894.48 and 7,878.96

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Solution

The fourth proportional to 26,599.32, 39,894.48 and 7,878.96 is: 11,817.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,599.32 : 39,894.48 = 7,878.96 : x
  2. Step 2: Convert to fraction form
    26,599.32/39,894.48 = 7,878.96/x
  3. Step 3: Cross multiply
    26,599.32x = 39,894.48 × 7,878.96
  4. Step 4: Simplify right side
    26,599.32x = 314,327,012.14
  5. Step 5: Solve for x
    x = 314,327,012.14/26,599.32
  6. Step 6: Final answer
    x = 11,817.11

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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.