Home / 13,932.07-20,903.44-8,389.38

Finding the Fourth Proportional to 13,932.07, 20,903.44 and 8,389.38

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Solution

The fourth proportional to 13,932.07, 20,903.44 and 8,389.38 is: 12,587.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.07 : 20,903.44 = 8,389.38 : x
  2. Step 2: Convert to fraction form
    13,932.07/20,903.44 = 8,389.38/x
  3. Step 3: Cross multiply
    13,932.07x = 20,903.44 × 8,389.38
  4. Step 4: Simplify right side
    13,932.07x = 175,366,796.95
  5. Step 5: Solve for x
    x = 175,366,796.95/13,932.07
  6. Step 6: Final answer
    x = 12,587.28

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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.