Home / 15,180.40-22,742.52-12,730.96

Finding the Fourth Proportional to 15,180.40, 22,742.52 and 12,730.96

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Solution

The fourth proportional to 15,180.40, 22,742.52 and 12,730.96 is: 19,072.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,180.40 : 22,742.52 = 12,730.96 : x
  2. Step 2: Convert to fraction form
    15,180.40/22,742.52 = 12,730.96/x
  3. Step 3: Cross multiply
    15,180.40x = 22,742.52 × 12,730.96
  4. Step 4: Simplify right side
    15,180.40x = 289,534,112.42
  5. Step 5: Solve for x
    x = 289,534,112.42/15,180.40
  6. Step 6: Final answer
    x = 19,072.89

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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.