Home / 13,746.61-20,619.87-4,979.49

Finding the Fourth Proportional to 13,746.61, 20,619.87 and 4,979.49

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Solution

The fourth proportional to 13,746.61, 20,619.87 and 4,979.49 is: 7,469.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.61 : 20,619.87 = 4,979.49 : x
  2. Step 2: Convert to fraction form
    13,746.61/20,619.87 = 4,979.49/x
  3. Step 3: Cross multiply
    13,746.61x = 20,619.87 × 4,979.49
  4. Step 4: Simplify right side
    13,746.61x = 102,676,436.47
  5. Step 5: Solve for x
    x = 102,676,436.47/13,746.61
  6. Step 6: Final answer
    x = 7,469.22

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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.