Home / 26,361.59-39,539.46-6,640.15

Finding the Fourth Proportional to 26,361.59, 39,539.46 and 6,640.15

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Solution

The fourth proportional to 26,361.59, 39,539.46 and 6,640.15 is: 9,959.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,361.59 : 39,539.46 = 6,640.15 : x
  2. Step 2: Convert to fraction form
    26,361.59/39,539.46 = 6,640.15/x
  3. Step 3: Cross multiply
    26,361.59x = 39,539.46 × 6,640.15
  4. Step 4: Simplify right side
    26,361.59x = 262,547,747.62
  5. Step 5: Solve for x
    x = 262,547,747.62/26,361.59
  6. Step 6: Final answer
    x = 9,959.48

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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.