Home / 19,873.35-27,426.33-13,147.11

Finding the Fourth Proportional to 19,873.35, 27,426.33 and 13,147.11

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Solution

The fourth proportional to 19,873.35, 27,426.33 and 13,147.11 is: 18,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,873.35 : 27,426.33 = 13,147.11 : x
  2. Step 2: Convert to fraction form
    19,873.35/27,426.33 = 13,147.11/x
  3. Step 3: Cross multiply
    19,873.35x = 27,426.33 × 13,147.11
  4. Step 4: Simplify right side
    19,873.35x = 360,576,977.41
  5. Step 5: Solve for x
    x = 360,576,977.41/19,873.35
  6. Step 6: Final answer
    x = 18,143.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.