Home / 15,539.80-23,290.24-12,239.88

Finding the Fourth Proportional to 15,539.80, 23,290.24 and 12,239.88

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Solution

The fourth proportional to 15,539.80, 23,290.24 and 12,239.88 is: 18,344.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.80 : 23,290.24 = 12,239.88 : x
  2. Step 2: Convert to fraction form
    15,539.80/23,290.24 = 12,239.88/x
  3. Step 3: Cross multiply
    15,539.80x = 23,290.24 × 12,239.88
  4. Step 4: Simplify right side
    15,539.80x = 285,069,742.77
  5. Step 5: Solve for x
    x = 285,069,742.77/15,539.80
  6. Step 6: Final answer
    x = 18,344.49

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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.