Home / 13,772.52-20,636.76-8,838.12

Finding the Fourth Proportional to 13,772.52, 20,636.76 and 8,838.12

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Solution

The fourth proportional to 13,772.52, 20,636.76 and 8,838.12 is: 13,243.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.52 : 20,636.76 = 8,838.12 : x
  2. Step 2: Convert to fraction form
    13,772.52/20,636.76 = 8,838.12/x
  3. Step 3: Cross multiply
    13,772.52x = 20,636.76 × 8,838.12
  4. Step 4: Simplify right side
    13,772.52x = 182,390,161.29
  5. Step 5: Solve for x
    x = 182,390,161.29/13,772.52
  6. Step 6: Final answer
    x = 13,243.05

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1.5x scale

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.