Home / 10,511.19-15,759.50-4,959.86

Finding the Fourth Proportional to 10,511.19, 15,759.50 and 4,959.86

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Solution

The fourth proportional to 10,511.19, 15,759.50 and 4,959.86 is: 7,436.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.19 : 15,759.50 = 4,959.86 : x
  2. Step 2: Convert to fraction form
    10,511.19/15,759.50 = 4,959.86/x
  3. Step 3: Cross multiply
    10,511.19x = 15,759.50 × 4,959.86
  4. Step 4: Simplify right side
    10,511.19x = 78,164,810.07
  5. Step 5: Solve for x
    x = 78,164,810.07/10,511.19
  6. Step 6: Final answer
    x = 7,436.34

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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.