Home / 13,801.72-20,712.30-8,883.40

Finding the Fourth Proportional to 13,801.72, 20,712.30 and 8,883.40

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Solution

The fourth proportional to 13,801.72, 20,712.30 and 8,883.40 is: 13,331.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.72 : 20,712.30 = 8,883.40 : x
  2. Step 2: Convert to fraction form
    13,801.72/20,712.30 = 8,883.40/x
  3. Step 3: Cross multiply
    13,801.72x = 20,712.30 × 8,883.40
  4. Step 4: Simplify right side
    13,801.72x = 183,995,645.82
  5. Step 5: Solve for x
    x = 183,995,645.82/13,801.72
  6. Step 6: Final answer
    x = 13,331.36

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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.