Home / 26,187.50-39,287.40-8,657.33

Finding the Fourth Proportional to 26,187.50, 39,287.40 and 8,657.33

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Solution

The fourth proportional to 26,187.50, 39,287.40 and 8,657.33 is: 12,988.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,187.50 : 39,287.40 = 8,657.33 : x
  2. Step 2: Convert to fraction form
    26,187.50/39,287.40 = 8,657.33/x
  3. Step 3: Cross multiply
    26,187.50x = 39,287.40 × 8,657.33
  4. Step 4: Simplify right side
    26,187.50x = 340,123,986.64
  5. Step 5: Solve for x
    x = 340,123,986.64/26,187.50
  6. Step 6: Final answer
    x = 12,988.03

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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.