Home / 18,849.24-28,259.28-12,609

Finding the Fourth Proportional to 18,849.24, 28,259.28 and 12,609

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Solution

The fourth proportional to 18,849.24, 28,259.28 and 12,609 is: 18,903.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,849.24 : 28,259.28 = 12,609 : x
  2. Step 2: Convert to fraction form
    18,849.24/28,259.28 = 12,609/x
  3. Step 3: Cross multiply
    18,849.24x = 28,259.28 × 12,609
  4. Step 4: Simplify right side
    18,849.24x = 356,321,261.52
  5. Step 5: Solve for x
    x = 356,321,261.52/18,849.24
  6. Step 6: Final answer
    x = 18,903.75

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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.