Home / 11,167.36-16,721.60-7,862.40

Finding the Fourth Proportional to 11,167.36, 16,721.60 and 7,862.40

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Solution

The fourth proportional to 11,167.36, 16,721.60 and 7,862.40 is: 11,772.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,167.36 : 16,721.60 = 7,862.40 : x
  2. Step 2: Convert to fraction form
    11,167.36/16,721.60 = 7,862.40/x
  3. Step 3: Cross multiply
    11,167.36x = 16,721.60 × 7,862.40
  4. Step 4: Simplify right side
    11,167.36x = 131,471,907.84
  5. Step 5: Solve for x
    x = 131,471,907.84/11,167.36
  6. Step 6: Final answer
    x = 11,772.87

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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.