Home / 11,339.31-17,012.87-5,103.70

Finding the Fourth Proportional to 11,339.31, 17,012.87 and 5,103.70

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Solution

The fourth proportional to 11,339.31, 17,012.87 and 5,103.70 is: 7,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.31 : 17,012.87 = 5,103.70 : x
  2. Step 2: Convert to fraction form
    11,339.31/17,012.87 = 5,103.70/x
  3. Step 3: Cross multiply
    11,339.31x = 17,012.87 × 5,103.70
  4. Step 4: Simplify right side
    11,339.31x = 86,828,535.71
  5. Step 5: Solve for x
    x = 86,828,535.71/11,339.31
  6. Step 6: Final answer
    x = 7,657.30

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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.