Home / 18,575.04-25,619.24-12,909.72

Finding the Fourth Proportional to 18,575.04, 25,619.24 and 12,909.72

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Solution

The fourth proportional to 18,575.04, 25,619.24 and 12,909.72 is: 17,805.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,575.04 : 25,619.24 = 12,909.72 : x
  2. Step 2: Convert to fraction form
    18,575.04/25,619.24 = 12,909.72/x
  3. Step 3: Cross multiply
    18,575.04x = 25,619.24 × 12,909.72
  4. Step 4: Simplify right side
    18,575.04x = 330,737,215.01
  5. Step 5: Solve for x
    x = 330,737,215.01/18,575.04
  6. Step 6: Final answer
    x = 17,805.46

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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.