Home / 13,722.45-18,937.06-7,434.83

Finding the Fourth Proportional to 13,722.45, 18,937.06 and 7,434.83

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Solution

The fourth proportional to 13,722.45, 18,937.06 and 7,434.83 is: 10,260.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.45 : 18,937.06 = 7,434.83 : x
  2. Step 2: Convert to fraction form
    13,722.45/18,937.06 = 7,434.83/x
  3. Step 3: Cross multiply
    13,722.45x = 18,937.06 × 7,434.83
  4. Step 4: Simplify right side
    13,722.45x = 140,793,821.80
  5. Step 5: Solve for x
    x = 140,793,821.80/13,722.45
  6. Step 6: Final answer
    x = 10,260.11

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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.