Home / 13,307.06-19,962.70-4,422.72

Finding the Fourth Proportional to 13,307.06, 19,962.70 and 4,422.72

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Solution

The fourth proportional to 13,307.06, 19,962.70 and 4,422.72 is: 6,634.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.06 : 19,962.70 = 4,422.72 : x
  2. Step 2: Convert to fraction form
    13,307.06/19,962.70 = 4,422.72/x
  3. Step 3: Cross multiply
    13,307.06x = 19,962.70 × 4,422.72
  4. Step 4: Simplify right side
    13,307.06x = 88,289,432.54
  5. Step 5: Solve for x
    x = 88,289,432.54/13,307.06
  6. Step 6: Final answer
    x = 6,634.78

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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.