Home / 18,390.28-27,592.80-8,399.76

Finding the Fourth Proportional to 18,390.28, 27,592.80 and 8,399.76

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Solution

The fourth proportional to 18,390.28, 27,592.80 and 8,399.76 is: 12,603.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390.28 : 27,592.80 = 8,399.76 : x
  2. Step 2: Convert to fraction form
    18,390.28/27,592.80 = 8,399.76/x
  3. Step 3: Cross multiply
    18,390.28x = 27,592.80 × 8,399.76
  4. Step 4: Simplify right side
    18,390.28x = 231,772,897.73
  5. Step 5: Solve for x
    x = 231,772,897.73/18,390.28
  6. Step 6: Final answer
    x = 12,603.01

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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.