Home / 13,284.20-19,938.61-6,715.00

Finding the Fourth Proportional to 13,284.20, 19,938.61 and 6,715.00

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Solution

The fourth proportional to 13,284.20, 19,938.61 and 6,715.00 is: 10,078.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,284.20 : 19,938.61 = 6,715.00 : x
  2. Step 2: Convert to fraction form
    13,284.20/19,938.61 = 6,715.00/x
  3. Step 3: Cross multiply
    13,284.20x = 19,938.61 × 6,715.00
  4. Step 4: Simplify right side
    13,284.20x = 133,887,761.70
  5. Step 5: Solve for x
    x = 133,887,761.70/13,284.20
  6. Step 6: Final answer
    x = 10,078.72

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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.