Home / 13,339.93-18,409.09-7,371.70

Finding the Fourth Proportional to 13,339.93, 18,409.09 and 7,371.70

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Solution

The fourth proportional to 13,339.93, 18,409.09 and 7,371.70 is: 10,172.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.93 : 18,409.09 = 7,371.70 : x
  2. Step 2: Convert to fraction form
    13,339.93/18,409.09 = 7,371.70/x
  3. Step 3: Cross multiply
    13,339.93x = 18,409.09 × 7,371.70
  4. Step 4: Simplify right side
    13,339.93x = 135,706,288.75
  5. Step 5: Solve for x
    x = 135,706,288.75/13,339.93
  6. Step 6: Final answer
    x = 10,172.94

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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.