Home / 12,149.23-18,216.04-5,127.32

Finding the Fourth Proportional to 12,149.23, 18,216.04 and 5,127.32

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Solution

The fourth proportional to 12,149.23, 18,216.04 and 5,127.32 is: 7,687.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.23 : 18,216.04 = 5,127.32 : x
  2. Step 2: Convert to fraction form
    12,149.23/18,216.04 = 5,127.32/x
  3. Step 3: Cross multiply
    12,149.23x = 18,216.04 × 5,127.32
  4. Step 4: Simplify right side
    12,149.23x = 93,399,466.21
  5. Step 5: Solve for x
    x = 93,399,466.21/12,149.23
  6. Step 6: Final answer
    x = 7,687.69

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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.