Home / 10,508.95-15,763.40-3,112.82

Finding the Fourth Proportional to 10,508.95, 15,763.40 and 3,112.82

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Solution

The fourth proportional to 10,508.95, 15,763.40 and 3,112.82 is: 4,669.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,508.95 : 15,763.40 = 3,112.82 : x
  2. Step 2: Convert to fraction form
    10,508.95/15,763.40 = 3,112.82/x
  3. Step 3: Cross multiply
    10,508.95x = 15,763.40 × 3,112.82
  4. Step 4: Simplify right side
    10,508.95x = 49,068,603.19
  5. Step 5: Solve for x
    x = 49,068,603.19/10,508.95
  6. Step 6: Final answer
    x = 4,669.22

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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.