Home / 12,621.68-17,424.89-7,587.11

Finding the Fourth Proportional to 12,621.68, 17,424.89 and 7,587.11

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Solution

The fourth proportional to 12,621.68, 17,424.89 and 7,587.11 is: 10,474.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621.68 : 17,424.89 = 7,587.11 : x
  2. Step 2: Convert to fraction form
    12,621.68/17,424.89 = 7,587.11/x
  3. Step 3: Cross multiply
    12,621.68x = 17,424.89 × 7,587.11
  4. Step 4: Simplify right side
    12,621.68x = 132,204,519.23
  5. Step 5: Solve for x
    x = 132,204,519.23/12,621.68
  6. Step 6: Final answer
    x = 10,474.40

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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.