Home / 26,655.40-39,972.30-9,116.20

Finding the Fourth Proportional to 26,655.40, 39,972.30 and 9,116.20

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Solution

The fourth proportional to 26,655.40, 39,972.30 and 9,116.20 is: 13,670.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,655.40 : 39,972.30 = 9,116.20 : x
  2. Step 2: Convert to fraction form
    26,655.40/39,972.30 = 9,116.20/x
  3. Step 3: Cross multiply
    26,655.40x = 39,972.30 × 9,116.20
  4. Step 4: Simplify right side
    26,655.40x = 364,395,481.26
  5. Step 5: Solve for x
    x = 364,395,481.26/26,655.40
  6. Step 6: Final answer
    x = 13,670.61

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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.