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Finding the Fourth Proportional to 26,656.53, 39,984.78 and 9,126.51

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Solution

The fourth proportional to 26,656.53, 39,984.78 and 9,126.51 is: 13,689.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,656.53 : 39,984.78 = 9,126.51 : x
  2. Step 2: Convert to fraction form
    26,656.53/39,984.78 = 9,126.51/x
  3. Step 3: Cross multiply
    26,656.53x = 39,984.78 × 9,126.51
  4. Step 4: Simplify right side
    26,656.53x = 364,921,494.52
  5. Step 5: Solve for x
    x = 364,921,494.52/26,656.53
  6. Step 6: Final answer
    x = 13,689.76

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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.