Home / 15,161.16-20,920.98-11,184.48

Finding the Fourth Proportional to 15,161.16, 20,920.98 and 11,184.48

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Solution

The fourth proportional to 15,161.16, 20,920.98 and 11,184.48 is: 15,433.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,161.16 : 20,920.98 = 11,184.48 : x
  2. Step 2: Convert to fraction form
    15,161.16/20,920.98 = 11,184.48/x
  3. Step 3: Cross multiply
    15,161.16x = 20,920.98 × 11,184.48
  4. Step 4: Simplify right side
    15,161.16x = 233,990,282.39
  5. Step 5: Solve for x
    x = 233,990,282.39/15,161.16
  6. Step 6: Final answer
    x = 15,433.53

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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.