Home / 13,744.06-18,967.22-7,775.61

Finding the Fourth Proportional to 13,744.06, 18,967.22 and 7,775.61

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Solution

The fourth proportional to 13,744.06, 18,967.22 and 7,775.61 is: 10,730.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,744.06 : 18,967.22 = 7,775.61 : x
  2. Step 2: Convert to fraction form
    13,744.06/18,967.22 = 7,775.61/x
  3. Step 3: Cross multiply
    13,744.06x = 18,967.22 × 7,775.61
  4. Step 4: Simplify right side
    13,744.06x = 147,481,705.50
  5. Step 5: Solve for x
    x = 147,481,705.50/13,744.06
  6. Step 6: Final answer
    x = 10,730.58

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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.