Home / 12,769.04-17,621.16-7,179.92

Finding the Fourth Proportional to 12,769.04, 17,621.16 and 7,179.92

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Solution

The fourth proportional to 12,769.04, 17,621.16 and 7,179.92 is: 9,908.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769.04 : 17,621.16 = 7,179.92 : x
  2. Step 2: Convert to fraction form
    12,769.04/17,621.16 = 7,179.92/x
  3. Step 3: Cross multiply
    12,769.04x = 17,621.16 × 7,179.92
  4. Step 4: Simplify right side
    12,769.04x = 126,518,519.11
  5. Step 5: Solve for x
    x = 126,518,519.11/12,769.04
  6. Step 6: Final answer
    x = 9,908.22

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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.