Home / 15,459.22-21,333.72-8,744.71

Finding the Fourth Proportional to 15,459.22, 21,333.72 and 8,744.71

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Solution

The fourth proportional to 15,459.22, 21,333.72 and 8,744.71 is: 12,067.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.22 : 21,333.72 = 8,744.71 : x
  2. Step 2: Convert to fraction form
    15,459.22/21,333.72 = 8,744.71/x
  3. Step 3: Cross multiply
    15,459.22x = 21,333.72 × 8,744.71
  4. Step 4: Simplify right side
    15,459.22x = 186,557,087.95
  5. Step 5: Solve for x
    x = 186,557,087.95/15,459.22
  6. Step 6: Final answer
    x = 12,067.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.