Home / 13,348.10-18,418.75-7,378.94

Finding the Fourth Proportional to 13,348.10, 18,418.75 and 7,378.94

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Solution

The fourth proportional to 13,348.10, 18,418.75 and 7,378.94 is: 10,182.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.10 : 18,418.75 = 7,378.94 : x
  2. Step 2: Convert to fraction form
    13,348.10/18,418.75 = 7,378.94/x
  3. Step 3: Cross multiply
    13,348.10x = 18,418.75 × 7,378.94
  4. Step 4: Simplify right side
    13,348.10x = 135,910,740.58
  5. Step 5: Solve for x
    x = 135,910,740.58/13,348.10
  6. Step 6: Final answer
    x = 10,182.03

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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.