Home / 13,923.31-20,878.05-4,434.39

Finding the Fourth Proportional to 13,923.31, 20,878.05 and 4,434.39

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Solution

The fourth proportional to 13,923.31, 20,878.05 and 4,434.39 is: 6,649.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.31 : 20,878.05 = 4,434.39 : x
  2. Step 2: Convert to fraction form
    13,923.31/20,878.05 = 4,434.39/x
  3. Step 3: Cross multiply
    13,923.31x = 20,878.05 × 4,434.39
  4. Step 4: Simplify right side
    13,923.31x = 92,581,289.58
  5. Step 5: Solve for x
    x = 92,581,289.58/13,923.31
  6. Step 6: Final answer
    x = 6,649.38

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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.