Home / 12,021.38-16,588.01-6,717.20

Finding the Fourth Proportional to 12,021.38, 16,588.01 and 6,717.20

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Solution

The fourth proportional to 12,021.38, 16,588.01 and 6,717.20 is: 9,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,021.38 : 16,588.01 = 6,717.20 : x
  2. Step 2: Convert to fraction form
    12,021.38/16,588.01 = 6,717.20/x
  3. Step 3: Cross multiply
    12,021.38x = 16,588.01 × 6,717.20
  4. Step 4: Simplify right side
    12,021.38x = 111,424,864.25
  5. Step 5: Solve for x
    x = 111,424,864.25/12,021.38
  6. Step 6: Final answer
    x = 9,268.90

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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.