Home / 14,974.82-20,663.60-8,685.98

Finding the Fourth Proportional to 14,974.82, 20,663.60 and 8,685.98

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Solution

The fourth proportional to 14,974.82, 20,663.60 and 8,685.98 is: 11,985.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,974.82 : 20,663.60 = 8,685.98 : x
  2. Step 2: Convert to fraction form
    14,974.82/20,663.60 = 8,685.98/x
  3. Step 3: Cross multiply
    14,974.82x = 20,663.60 × 8,685.98
  4. Step 4: Simplify right side
    14,974.82x = 179,483,616.33
  5. Step 5: Solve for x
    x = 179,483,616.33/14,974.82
  6. Step 6: Final answer
    x = 11,985.69

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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.