Home / 13,112.70-18,097.50-7,448.04

Finding the Fourth Proportional to 13,112.70, 18,097.50 and 7,448.04

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Solution

The fourth proportional to 13,112.70, 18,097.50 and 7,448.04 is: 10,279.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.70 : 18,097.50 = 7,448.04 : x
  2. Step 2: Convert to fraction form
    13,112.70/18,097.50 = 7,448.04/x
  3. Step 3: Cross multiply
    13,112.70x = 18,097.50 × 7,448.04
  4. Step 4: Simplify right side
    13,112.70x = 134,790,903.90
  5. Step 5: Solve for x
    x = 134,790,903.90/13,112.70
  6. Step 6: Final answer
    x = 10,279.42

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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.