Home / 18,654.80-27,987.31-5,507.16

Finding the Fourth Proportional to 18,654.80, 27,987.31 and 5,507.16

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Solution

The fourth proportional to 18,654.80, 27,987.31 and 5,507.16 is: 8,262.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654.80 : 27,987.31 = 5,507.16 : x
  2. Step 2: Convert to fraction form
    18,654.80/27,987.31 = 5,507.16/x
  3. Step 3: Cross multiply
    18,654.80x = 27,987.31 × 5,507.16
  4. Step 4: Simplify right side
    18,654.80x = 154,130,594.14
  5. Step 5: Solve for x
    x = 154,130,594.14/18,654.80
  6. Step 6: Final answer
    x = 8,262.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.