Home / 13,995.42-20,928.30-10,839.66

Finding the Fourth Proportional to 13,995.42, 20,928.30 and 10,839.66

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Solution

The fourth proportional to 13,995.42, 20,928.30 and 10,839.66 is: 16,209.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.42 : 20,928.30 = 10,839.66 : x
  2. Step 2: Convert to fraction form
    13,995.42/20,928.30 = 10,839.66/x
  3. Step 3: Cross multiply
    13,995.42x = 20,928.30 × 10,839.66
  4. Step 4: Simplify right side
    13,995.42x = 226,855,656.38
  5. Step 5: Solve for x
    x = 226,855,656.38/13,995.42
  6. Step 6: Final answer
    x = 16,209.28

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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.