Home / 12,621.33-18,842.99-9,644.05

Finding the Fourth Proportional to 12,621.33, 18,842.99 and 9,644.05

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Solution

The fourth proportional to 12,621.33, 18,842.99 and 9,644.05 is: 14,398.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621.33 : 18,842.99 = 9,644.05 : x
  2. Step 2: Convert to fraction form
    12,621.33/18,842.99 = 9,644.05/x
  3. Step 3: Cross multiply
    12,621.33x = 18,842.99 × 9,644.05
  4. Step 4: Simplify right side
    12,621.33x = 181,722,713.04
  5. Step 5: Solve for x
    x = 181,722,713.04/12,621.33
  6. Step 6: Final answer
    x = 14,398.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.