Home / 10,218.02-15,323.04-3,977.21

Finding the Fourth Proportional to 10,218.02, 15,323.04 and 3,977.21

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Solution

The fourth proportional to 10,218.02, 15,323.04 and 3,977.21 is: 5,964.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.02 : 15,323.04 = 3,977.21 : x
  2. Step 2: Convert to fraction form
    10,218.02/15,323.04 = 3,977.21/x
  3. Step 3: Cross multiply
    10,218.02x = 15,323.04 × 3,977.21
  4. Step 4: Simplify right side
    10,218.02x = 60,942,947.92
  5. Step 5: Solve for x
    x = 60,942,947.92/10,218.02
  6. Step 6: Final answer
    x = 5,964.26

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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.