Home / 26,165.76-39,189.24-12,988.68

Finding the Fourth Proportional to 26,165.76, 39,189.24 and 12,988.68

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Solution

The fourth proportional to 26,165.76, 39,189.24 and 12,988.68 is: 19,453.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,165.76 : 39,189.24 = 12,988.68 : x
  2. Step 2: Convert to fraction form
    26,165.76/39,189.24 = 12,988.68/x
  3. Step 3: Cross multiply
    26,165.76x = 39,189.24 × 12,988.68
  4. Step 4: Simplify right side
    26,165.76x = 509,016,497.80
  5. Step 5: Solve for x
    x = 509,016,497.80/26,165.76
  6. Step 6: Final answer
    x = 19,453.53

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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.