Home / 17,539.89-26,309.85-8,772.78

Finding the Fourth Proportional to 17,539.89, 26,309.85 and 8,772.78

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Solution

The fourth proportional to 17,539.89, 26,309.85 and 8,772.78 is: 13,159.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,539.89 : 26,309.85 = 8,772.78 : x
  2. Step 2: Convert to fraction form
    17,539.89/26,309.85 = 8,772.78/x
  3. Step 3: Cross multiply
    17,539.89x = 26,309.85 × 8,772.78
  4. Step 4: Simplify right side
    17,539.89x = 230,810,525.88
  5. Step 5: Solve for x
    x = 230,810,525.88/17,539.89
  6. Step 6: Final answer
    x = 13,159.18

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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.