Home / 26,259.80-39,389.09-8,729.78

Finding the Fourth Proportional to 26,259.80, 39,389.09 and 8,729.78

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Solution

The fourth proportional to 26,259.80, 39,389.09 and 8,729.78 is: 13,094.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,259.80 : 39,389.09 = 8,729.78 : x
  2. Step 2: Convert to fraction form
    26,259.80/39,389.09 = 8,729.78/x
  3. Step 3: Cross multiply
    26,259.80x = 39,389.09 × 8,729.78
  4. Step 4: Simplify right side
    26,259.80x = 343,857,849.51
  5. Step 5: Solve for x
    x = 343,857,849.51/26,259.80
  6. Step 6: Final answer
    x = 13,094.46

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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.