Home / 10,339.36-15,511.64-3,320.00

Finding the Fourth Proportional to 10,339.36, 15,511.64 and 3,320.00

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Solution

The fourth proportional to 10,339.36, 15,511.64 and 3,320.00 is: 4,980.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,339.36 : 15,511.64 = 3,320.00 : x
  2. Step 2: Convert to fraction form
    10,339.36/15,511.64 = 3,320.00/x
  3. Step 3: Cross multiply
    10,339.36x = 15,511.64 × 3,320.00
  4. Step 4: Simplify right side
    10,339.36x = 51,498,608.81
  5. Step 5: Solve for x
    x = 51,498,608.81/10,339.36
  6. Step 6: Final answer
    x = 4,980.83

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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.