Home / 13,722.57-18,937.26-7,434.95

Finding the Fourth Proportional to 13,722.57, 18,937.26 and 7,434.95

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Solution

The fourth proportional to 13,722.57, 18,937.26 and 7,434.95 is: 10,260.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.57 : 18,937.26 = 7,434.95 : x
  2. Step 2: Convert to fraction form
    13,722.57/18,937.26 = 7,434.95/x
  3. Step 3: Cross multiply
    13,722.57x = 18,937.26 × 7,434.95
  4. Step 4: Simplify right side
    13,722.57x = 140,797,486.55
  5. Step 5: Solve for x
    x = 140,797,486.55/13,722.57
  6. Step 6: Final answer
    x = 10,260.29

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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.