Home / 18,089.36-27,134.28-9,319.76

Finding the Fourth Proportional to 18,089.36, 27,134.28 and 9,319.76

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Solution

The fourth proportional to 18,089.36, 27,134.28 and 9,319.76 is: 13,979.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,089.36 : 27,134.28 = 9,319.76 : x
  2. Step 2: Convert to fraction form
    18,089.36/27,134.28 = 9,319.76/x
  3. Step 3: Cross multiply
    18,089.36x = 27,134.28 × 9,319.76
  4. Step 4: Simplify right side
    18,089.36x = 252,884,977.37
  5. Step 5: Solve for x
    x = 252,884,977.37/18,089.36
  6. Step 6: Final answer
    x = 13,979.76

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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.