Home / 10,558.28-15,840.45-6,340.41

Finding the Fourth Proportional to 10,558.28, 15,840.45 and 6,340.41

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Solution

The fourth proportional to 10,558.28, 15,840.45 and 6,340.41 is: 9,512.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,558.28 : 15,840.45 = 6,340.41 : x
  2. Step 2: Convert to fraction form
    10,558.28/15,840.45 = 6,340.41/x
  3. Step 3: Cross multiply
    10,558.28x = 15,840.45 × 6,340.41
  4. Step 4: Simplify right side
    10,558.28x = 100,434,947.58
  5. Step 5: Solve for x
    x = 100,434,947.58/10,558.28
  6. Step 6: Final answer
    x = 9,512.44

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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.