Home / 12,621.81-17,417.92-7,244.14

Finding the Fourth Proportional to 12,621.81, 17,417.92 and 7,244.14

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Solution

The fourth proportional to 12,621.81, 17,417.92 and 7,244.14 is: 9,996.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621.81 : 17,417.92 = 7,244.14 : x
  2. Step 2: Convert to fraction form
    12,621.81/17,417.92 = 7,244.14/x
  3. Step 3: Cross multiply
    12,621.81x = 17,417.92 × 7,244.14
  4. Step 4: Simplify right side
    12,621.81x = 126,177,850.99
  5. Step 5: Solve for x
    x = 126,177,850.99/12,621.81
  6. Step 6: Final answer
    x = 9,996.81

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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.