Home / 19,867.61-27,425.11-11,908.30

Finding the Fourth Proportional to 19,867.61, 27,425.11 and 11,908.30

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Solution

The fourth proportional to 19,867.61, 27,425.11 and 11,908.30 is: 16,438.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,867.61 : 27,425.11 = 11,908.30 : x
  2. Step 2: Convert to fraction form
    19,867.61/27,425.11 = 11,908.30/x
  3. Step 3: Cross multiply
    19,867.61x = 27,425.11 × 11,908.30
  4. Step 4: Simplify right side
    19,867.61x = 326,586,437.41
  5. Step 5: Solve for x
    x = 326,586,437.41/19,867.61
  6. Step 6: Final answer
    x = 16,438.13

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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.