Home / 26,138.61-39,209.67-8,608.59

Finding the Fourth Proportional to 26,138.61, 39,209.67 and 8,608.59

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Solution

The fourth proportional to 26,138.61, 39,209.67 and 8,608.59 is: 12,913.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,138.61 : 39,209.67 = 8,608.59 : x
  2. Step 2: Convert to fraction form
    26,138.61/39,209.67 = 8,608.59/x
  3. Step 3: Cross multiply
    26,138.61x = 39,209.67 × 8,608.59
  4. Step 4: Simplify right side
    26,138.61x = 337,539,973.07
  5. Step 5: Solve for x
    x = 337,539,973.07/26,138.61
  6. Step 6: Final answer
    x = 12,913.46

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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.