Home / 18,338.68-27,510.34-5,191.06

Finding the Fourth Proportional to 18,338.68, 27,510.34 and 5,191.06

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Solution

The fourth proportional to 18,338.68, 27,510.34 and 5,191.06 is: 7,787.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338.68 : 27,510.34 = 5,191.06 : x
  2. Step 2: Convert to fraction form
    18,338.68/27,510.34 = 5,191.06/x
  3. Step 3: Cross multiply
    18,338.68x = 27,510.34 × 5,191.06
  4. Step 4: Simplify right side
    18,338.68x = 142,807,825.56
  5. Step 5: Solve for x
    x = 142,807,825.56/18,338.68
  6. Step 6: Final answer
    x = 7,787.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.