Home / 16,917.26-23,368.13-12,986.94

Finding the Fourth Proportional to 16,917.26, 23,368.13 and 12,986.94

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Solution

The fourth proportional to 16,917.26, 23,368.13 and 12,986.94 is: 17,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,917.26 : 23,368.13 = 12,986.94 : x
  2. Step 2: Convert to fraction form
    16,917.26/23,368.13 = 12,986.94/x
  3. Step 3: Cross multiply
    16,917.26x = 23,368.13 × 12,986.94
  4. Step 4: Simplify right side
    16,917.26x = 303,480,502.22
  5. Step 5: Solve for x
    x = 303,480,502.22/16,917.26
  6. Step 6: Final answer
    x = 17,939.10

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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.