Home / 15,278.63-22,917.94-4,890.38

Finding the Fourth Proportional to 15,278.63, 22,917.94 and 4,890.38

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Solution

The fourth proportional to 15,278.63, 22,917.94 and 4,890.38 is: 7,335.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,278.63 : 22,917.94 = 4,890.38 : x
  2. Step 2: Convert to fraction form
    15,278.63/22,917.94 = 4,890.38/x
  3. Step 3: Cross multiply
    15,278.63x = 22,917.94 × 4,890.38
  4. Step 4: Simplify right side
    15,278.63x = 112,077,308.60
  5. Step 5: Solve for x
    x = 112,077,308.60/15,278.63
  6. Step 6: Final answer
    x = 7,335.56

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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.