Home / 18,001.68-27,002.88-9,688.56

Finding the Fourth Proportional to 18,001.68, 27,002.88 and 9,688.56

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Solution

The fourth proportional to 18,001.68, 27,002.88 and 9,688.56 is: 14,533.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,001.68 : 27,002.88 = 9,688.56 : x
  2. Step 2: Convert to fraction form
    18,001.68/27,002.88 = 9,688.56/x
  3. Step 3: Cross multiply
    18,001.68x = 27,002.88 × 9,688.56
  4. Step 4: Simplify right side
    18,001.68x = 261,619,023.05
  5. Step 5: Solve for x
    x = 261,619,023.05/18,001.68
  6. Step 6: Final answer
    x = 14,533.03

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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.