Home / 13,427.78-20,148.35-10,160.91

Finding the Fourth Proportional to 13,427.78, 20,148.35 and 10,160.91

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Solution

The fourth proportional to 13,427.78, 20,148.35 and 10,160.91 is: 15,246.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.78 : 20,148.35 = 10,160.91 : x
  2. Step 2: Convert to fraction form
    13,427.78/20,148.35 = 10,160.91/x
  3. Step 3: Cross multiply
    13,427.78x = 20,148.35 × 10,160.91
  4. Step 4: Simplify right side
    13,427.78x = 204,725,520.19
  5. Step 5: Solve for x
    x = 204,725,520.19/13,427.78
  6. Step 6: Final answer
    x = 15,246.42

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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.