Home / 13,868.47-20,799.60-4,005.55

Finding the Fourth Proportional to 13,868.47, 20,799.60 and 4,005.55

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Solution

The fourth proportional to 13,868.47, 20,799.60 and 4,005.55 is: 6,007.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.47 : 20,799.60 = 4,005.55 : x
  2. Step 2: Convert to fraction form
    13,868.47/20,799.60 = 4,005.55/x
  3. Step 3: Cross multiply
    13,868.47x = 20,799.60 × 4,005.55
  4. Step 4: Simplify right side
    13,868.47x = 83,313,837.78
  5. Step 5: Solve for x
    x = 83,313,837.78/13,868.47
  6. Step 6: Final answer
    x = 6,007.43

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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.