Home / 13,427.59-20,153.68-6,858.38

Finding the Fourth Proportional to 13,427.59, 20,153.68 and 6,858.38

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Solution

The fourth proportional to 13,427.59, 20,153.68 and 6,858.38 is: 10,293.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.59 : 20,153.68 = 6,858.38 : x
  2. Step 2: Convert to fraction form
    13,427.59/20,153.68 = 6,858.38/x
  3. Step 3: Cross multiply
    13,427.59x = 20,153.68 × 6,858.38
  4. Step 4: Simplify right side
    13,427.59x = 138,221,595.84
  5. Step 5: Solve for x
    x = 138,221,595.84/13,427.59
  6. Step 6: Final answer
    x = 10,293.85

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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.