Home / 14,006.45-20,987.79-8,801.39

Finding the Fourth Proportional to 14,006.45, 20,987.79 and 8,801.39

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Solution

The fourth proportional to 14,006.45, 20,987.79 and 8,801.39 is: 13,188.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.45 : 20,987.79 = 8,801.39 : x
  2. Step 2: Convert to fraction form
    14,006.45/20,987.79 = 8,801.39/x
  3. Step 3: Cross multiply
    14,006.45x = 20,987.79 × 8,801.39
  4. Step 4: Simplify right side
    14,006.45x = 184,721,744.49
  5. Step 5: Solve for x
    x = 184,721,744.49/14,006.45
  6. Step 6: Final answer
    x = 13,188.33

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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.