Home / 26,261.76-39,387.36-8,726.40

Finding the Fourth Proportional to 26,261.76, 39,387.36 and 8,726.40

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Solution

The fourth proportional to 26,261.76, 39,387.36 and 8,726.40 is: 13,087.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,261.76 : 39,387.36 = 8,726.40 : x
  2. Step 2: Convert to fraction form
    26,261.76/39,387.36 = 8,726.40/x
  3. Step 3: Cross multiply
    26,261.76x = 39,387.36 × 8,726.40
  4. Step 4: Simplify right side
    26,261.76x = 343,709,858.30
  5. Step 5: Solve for x
    x = 343,709,858.30/26,261.76
  6. Step 6: Final answer
    x = 13,087.85

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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.