Home / 13,282.71-18,330.09-7,314.39

Finding the Fourth Proportional to 13,282.71, 18,330.09 and 7,314.39

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Solution

The fourth proportional to 13,282.71, 18,330.09 and 7,314.39 is: 10,093.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,282.71 : 18,330.09 = 7,314.39 : x
  2. Step 2: Convert to fraction form
    13,282.71/18,330.09 = 7,314.39/x
  3. Step 3: Cross multiply
    13,282.71x = 18,330.09 × 7,314.39
  4. Step 4: Simplify right side
    13,282.71x = 134,073,427.00
  5. Step 5: Solve for x
    x = 134,073,427.00/13,282.71
  6. Step 6: Final answer
    x = 10,093.83

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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.