Home / 13,115.53-19,676.10-4,231.36

Finding the Fourth Proportional to 13,115.53, 19,676.10 and 4,231.36

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Solution

The fourth proportional to 13,115.53, 19,676.10 and 4,231.36 is: 6,347.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.53 : 19,676.10 = 4,231.36 : x
  2. Step 2: Convert to fraction form
    13,115.53/19,676.10 = 4,231.36/x
  3. Step 3: Cross multiply
    13,115.53x = 19,676.10 × 4,231.36
  4. Step 4: Simplify right side
    13,115.53x = 83,256,685.11
  5. Step 5: Solve for x
    x = 83,256,685.11/13,115.53
  6. Step 6: Final answer
    x = 6,347.95

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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.