Home / 13,959.28-20,938.94-6,558.31

Finding the Fourth Proportional to 13,959.28, 20,938.94 and 6,558.31

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Solution

The fourth proportional to 13,959.28, 20,938.94 and 6,558.31 is: 9,837.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,959.28 : 20,938.94 = 6,558.31 : x
  2. Step 2: Convert to fraction form
    13,959.28/20,938.94 = 6,558.31/x
  3. Step 3: Cross multiply
    13,959.28x = 20,938.94 × 6,558.31
  4. Step 4: Simplify right side
    13,959.28x = 137,324,026.80
  5. Step 5: Solve for x
    x = 137,324,026.80/13,959.28
  6. Step 6: Final answer
    x = 9,837.47

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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.