Home / 16,771.86-23,143.65-9,218.10

Finding the Fourth Proportional to 16,771.86, 23,143.65 and 9,218.10

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Solution

The fourth proportional to 16,771.86, 23,143.65 and 9,218.10 is: 12,720.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,771.86 : 23,143.65 = 9,218.10 : x
  2. Step 2: Convert to fraction form
    16,771.86/23,143.65 = 9,218.10/x
  3. Step 3: Cross multiply
    16,771.86x = 23,143.65 × 9,218.10
  4. Step 4: Simplify right side
    16,771.86x = 213,340,480.07
  5. Step 5: Solve for x
    x = 213,340,480.07/16,771.86
  6. Step 6: Final answer
    x = 12,720.14

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.