Home / 13,570.97-20,326.38-10,427.84

Finding the Fourth Proportional to 13,570.97, 20,326.38 and 10,427.84

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Solution

The fourth proportional to 13,570.97, 20,326.38 and 10,427.84 is: 15,618.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.97 : 20,326.38 = 10,427.84 : x
  2. Step 2: Convert to fraction form
    13,570.97/20,326.38 = 10,427.84/x
  3. Step 3: Cross multiply
    13,570.97x = 20,326.38 × 10,427.84
  4. Step 4: Simplify right side
    13,570.97x = 211,960,238.42
  5. Step 5: Solve for x
    x = 211,960,238.42/13,570.97
  6. Step 6: Final answer
    x = 15,618.65

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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.