Home / 18,655.11-27,984.71-5,507.48

Finding the Fourth Proportional to 18,655.11, 27,984.71 and 5,507.48

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Solution

The fourth proportional to 18,655.11, 27,984.71 and 5,507.48 is: 8,261.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,655.11 : 27,984.71 = 5,507.48 : x
  2. Step 2: Convert to fraction form
    18,655.11/27,984.71 = 5,507.48/x
  3. Step 3: Cross multiply
    18,655.11x = 27,984.71 × 5,507.48
  4. Step 4: Simplify right side
    18,655.11x = 154,125,314.36
  5. Step 5: Solve for x
    x = 154,125,314.36/18,655.11
  6. Step 6: Final answer
    x = 8,261.83

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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.