Home / 18,287.83-25,248.08-11,579.20

Finding the Fourth Proportional to 18,287.83, 25,248.08 and 11,579.20

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Solution

The fourth proportional to 18,287.83, 25,248.08 and 11,579.20 is: 15,986.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.83 : 25,248.08 = 11,579.20 : x
  2. Step 2: Convert to fraction form
    18,287.83/25,248.08 = 11,579.20/x
  3. Step 3: Cross multiply
    18,287.83x = 25,248.08 × 11,579.20
  4. Step 4: Simplify right side
    18,287.83x = 292,352,654.30
  5. Step 5: Solve for x
    x = 292,352,654.30/18,287.83
  6. Step 6: Final answer
    x = 15,986.19

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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.