Home / 12,440.38-18,659.94-4,648.58

Finding the Fourth Proportional to 12,440.38, 18,659.94 and 4,648.58

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Solution

The fourth proportional to 12,440.38, 18,659.94 and 4,648.58 is: 6,972.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.38 : 18,659.94 = 4,648.58 : x
  2. Step 2: Convert to fraction form
    12,440.38/18,659.94 = 4,648.58/x
  3. Step 3: Cross multiply
    12,440.38x = 18,659.94 × 4,648.58
  4. Step 4: Simplify right side
    12,440.38x = 86,742,223.89
  5. Step 5: Solve for x
    x = 86,742,223.89/12,440.38
  6. Step 6: Final answer
    x = 6,972.63

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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.