Home / 18,542.13-27,821.16-12,304.32

Finding the Fourth Proportional to 18,542.13, 27,821.16 and 12,304.32

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Solution

The fourth proportional to 18,542.13, 27,821.16 and 12,304.32 is: 18,461.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,542.13 : 27,821.16 = 12,304.32 : x
  2. Step 2: Convert to fraction form
    18,542.13/27,821.16 = 12,304.32/x
  3. Step 3: Cross multiply
    18,542.13x = 27,821.16 × 12,304.32
  4. Step 4: Simplify right side
    18,542.13x = 342,320,455.41
  5. Step 5: Solve for x
    x = 342,320,455.41/18,542.13
  6. Step 6: Final answer
    x = 18,461.77

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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.