Home / 13,908.12-20,866.84-4,548.57

Finding the Fourth Proportional to 13,908.12, 20,866.84 and 4,548.57

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Solution

The fourth proportional to 13,908.12, 20,866.84 and 4,548.57 is: 6,824.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.12 : 20,866.84 = 4,548.57 : x
  2. Step 2: Convert to fraction form
    13,908.12/20,866.84 = 4,548.57/x
  3. Step 3: Cross multiply
    13,908.12x = 20,866.84 × 4,548.57
  4. Step 4: Simplify right side
    13,908.12x = 94,914,282.42
  5. Step 5: Solve for x
    x = 94,914,282.42/13,908.12
  6. Step 6: Final answer
    x = 6,824.38

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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.