Home / 15,022.80-20,734.04-8,738.84

Finding the Fourth Proportional to 15,022.80, 20,734.04 and 8,738.84

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Solution

The fourth proportional to 15,022.80, 20,734.04 and 8,738.84 is: 12,061.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,022.80 : 20,734.04 = 8,738.84 : x
  2. Step 2: Convert to fraction form
    15,022.80/20,734.04 = 8,738.84/x
  3. Step 3: Cross multiply
    15,022.80x = 20,734.04 × 8,738.84
  4. Step 4: Simplify right side
    15,022.80x = 181,191,458.11
  5. Step 5: Solve for x
    x = 181,191,458.11/15,022.80
  6. Step 6: Final answer
    x = 12,061.10

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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.