Home / 19,318.18-26,660.80-10,820.18

Finding the Fourth Proportional to 19,318.18, 26,660.80 and 10,820.18

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Solution

The fourth proportional to 19,318.18, 26,660.80 and 10,820.18 is: 14,932.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318.18 : 26,660.80 = 10,820.18 : x
  2. Step 2: Convert to fraction form
    19,318.18/26,660.80 = 10,820.18/x
  3. Step 3: Cross multiply
    19,318.18x = 26,660.80 × 10,820.18
  4. Step 4: Simplify right side
    19,318.18x = 288,474,654.94
  5. Step 5: Solve for x
    x = 288,474,654.94/19,318.18
  6. Step 6: Final answer
    x = 14,932.81

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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.