Home / 11,801.28-17,588.40-11,308.80

Finding the Fourth Proportional to 11,801.28, 17,588.40 and 11,308.80

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Solution

The fourth proportional to 11,801.28, 17,588.40 and 11,308.80 is: 16,854.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,801.28 : 17,588.40 = 11,308.80 : x
  2. Step 2: Convert to fraction form
    11,801.28/17,588.40 = 11,308.80/x
  3. Step 3: Cross multiply
    11,801.28x = 17,588.40 × 11,308.80
  4. Step 4: Simplify right side
    11,801.28x = 198,903,697.92
  5. Step 5: Solve for x
    x = 198,903,697.92/11,801.28
  6. Step 6: Final answer
    x = 16,854.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.