Home / 12,199.77-18,287.18-6,923.63

Finding the Fourth Proportional to 12,199.77, 18,287.18 and 6,923.63

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Solution

The fourth proportional to 12,199.77, 18,287.18 and 6,923.63 is: 10,378.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,199.77 : 18,287.18 = 6,923.63 : x
  2. Step 2: Convert to fraction form
    12,199.77/18,287.18 = 6,923.63/x
  3. Step 3: Cross multiply
    12,199.77x = 18,287.18 × 6,923.63
  4. Step 4: Simplify right side
    12,199.77x = 126,613,542.01
  5. Step 5: Solve for x
    x = 126,613,542.01/12,199.77
  6. Step 6: Final answer
    x = 10,378.35

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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.