Home / 12,769.68-17,621.01-7,104.18

Finding the Fourth Proportional to 12,769.68, 17,621.01 and 7,104.18

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Solution

The fourth proportional to 12,769.68, 17,621.01 and 7,104.18 is: 9,803.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769.68 : 17,621.01 = 7,104.18 : x
  2. Step 2: Convert to fraction form
    12,769.68/17,621.01 = 7,104.18/x
  3. Step 3: Cross multiply
    12,769.68x = 17,621.01 × 7,104.18
  4. Step 4: Simplify right side
    12,769.68x = 125,182,826.82
  5. Step 5: Solve for x
    x = 125,182,826.82/12,769.68
  6. Step 6: Final answer
    x = 9,803.13

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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.