Home / 13,286.14-18,323.97-9,697.07

Finding the Fourth Proportional to 13,286.14, 18,323.97 and 9,697.07

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Solution

The fourth proportional to 13,286.14, 18,323.97 and 9,697.07 is: 13,373.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.14 : 18,323.97 = 9,697.07 : x
  2. Step 2: Convert to fraction form
    13,286.14/18,323.97 = 9,697.07/x
  3. Step 3: Cross multiply
    13,286.14x = 18,323.97 × 9,697.07
  4. Step 4: Simplify right side
    13,286.14x = 177,688,780.69
  5. Step 5: Solve for x
    x = 177,688,780.69/13,286.14
  6. Step 6: Final answer
    x = 13,373.99

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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.