Home / 19,318.97-26,660.84-10,821.46

Finding the Fourth Proportional to 19,318.97, 26,660.84 and 10,821.46

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Solution

The fourth proportional to 19,318.97, 26,660.84 and 10,821.46 is: 14,933.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318.97 : 26,660.84 = 10,821.46 : x
  2. Step 2: Convert to fraction form
    19,318.97/26,660.84 = 10,821.46/x
  3. Step 3: Cross multiply
    19,318.97x = 26,660.84 × 10,821.46
  4. Step 4: Simplify right side
    19,318.97x = 288,509,174.03
  5. Step 5: Solve for x
    x = 288,509,174.03/19,318.97
  6. Step 6: Final answer
    x = 14,933.98

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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.