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Finding the Fourth Proportional to 26,560.80, 39,842.64 and 9,925.20

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Solution

The fourth proportional to 26,560.80, 39,842.64 and 9,925.20 is: 14,888.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,560.80 : 39,842.64 = 9,925.20 : x
  2. Step 2: Convert to fraction form
    26,560.80/39,842.64 = 9,925.20/x
  3. Step 3: Cross multiply
    26,560.80x = 39,842.64 × 9,925.20
  4. Step 4: Simplify right side
    26,560.80x = 395,446,170.53
  5. Step 5: Solve for x
    x = 395,446,170.53/26,560.80
  6. Step 6: Final answer
    x = 14,888.34

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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.