Home / 13,712.58-18,923.22-7,744.23

Finding the Fourth Proportional to 13,712.58, 18,923.22 and 7,744.23

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Solution

The fourth proportional to 13,712.58, 18,923.22 and 7,744.23 is: 10,686.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.58 : 18,923.22 = 7,744.23 : x
  2. Step 2: Convert to fraction form
    13,712.58/18,923.22 = 7,744.23/x
  3. Step 3: Cross multiply
    13,712.58x = 18,923.22 × 7,744.23
  4. Step 4: Simplify right side
    13,712.58x = 146,545,768.02
  5. Step 5: Solve for x
    x = 146,545,768.02/13,712.58
  6. Step 6: Final answer
    x = 10,686.96

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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.