Home / 16,290.89-22,479.53-9,121.19

Finding the Fourth Proportional to 16,290.89, 22,479.53 and 9,121.19

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Solution

The fourth proportional to 16,290.89, 22,479.53 and 9,121.19 is: 12,586.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,290.89 : 22,479.53 = 9,121.19 : x
  2. Step 2: Convert to fraction form
    16,290.89/22,479.53 = 9,121.19/x
  3. Step 3: Cross multiply
    16,290.89x = 22,479.53 × 9,121.19
  4. Step 4: Simplify right side
    16,290.89x = 205,040,074.83
  5. Step 5: Solve for x
    x = 205,040,074.83/16,290.89
  6. Step 6: Final answer
    x = 12,586.18

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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.