Home / 13,712.48-18,923.28-7,744.22

Finding the Fourth Proportional to 13,712.48, 18,923.28 and 7,744.22

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Solution

The fourth proportional to 13,712.48, 18,923.28 and 7,744.22 is: 10,687.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.48 : 18,923.28 = 7,744.22 : x
  2. Step 2: Convert to fraction form
    13,712.48/18,923.28 = 7,744.22/x
  3. Step 3: Cross multiply
    13,712.48x = 18,923.28 × 7,744.22
  4. Step 4: Simplify right side
    13,712.48x = 146,546,043.44
  5. Step 5: Solve for x
    x = 146,546,043.44/13,712.48
  6. Step 6: Final answer
    x = 10,687.06

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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.