Home / 15,418.56-21,277.86-9,049.74

Finding the Fourth Proportional to 15,418.56, 21,277.86 and 9,049.74

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Solution

The fourth proportional to 15,418.56, 21,277.86 and 9,049.74 is: 12,488.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.56 : 21,277.86 = 9,049.74 : x
  2. Step 2: Convert to fraction form
    15,418.56/21,277.86 = 9,049.74/x
  3. Step 3: Cross multiply
    15,418.56x = 21,277.86 × 9,049.74
  4. Step 4: Simplify right side
    15,418.56x = 192,559,100.76
  5. Step 5: Solve for x
    x = 192,559,100.76/15,418.56
  6. Step 6: Final answer
    x = 12,488.79

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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.