Home / 15,839.43-21,860.82-9,126.07

Finding the Fourth Proportional to 15,839.43, 21,860.82 and 9,126.07

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Solution

The fourth proportional to 15,839.43, 21,860.82 and 9,126.07 is: 12,595.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,839.43 : 21,860.82 = 9,126.07 : x
  2. Step 2: Convert to fraction form
    15,839.43/21,860.82 = 9,126.07/x
  3. Step 3: Cross multiply
    15,839.43x = 21,860.82 × 9,126.07
  4. Step 4: Simplify right side
    15,839.43x = 199,503,319.82
  5. Step 5: Solve for x
    x = 199,503,319.82/15,839.43
  6. Step 6: Final answer
    x = 12,595.36

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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.