Home / 14,953.85-20,636.56-8,239.38

Finding the Fourth Proportional to 14,953.85, 20,636.56 and 8,239.38

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Solution

The fourth proportional to 14,953.85, 20,636.56 and 8,239.38 is: 11,370.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,953.85 : 20,636.56 = 8,239.38 : x
  2. Step 2: Convert to fraction form
    14,953.85/20,636.56 = 8,239.38/x
  3. Step 3: Cross multiply
    14,953.85x = 20,636.56 × 8,239.38
  4. Step 4: Simplify right side
    14,953.85x = 170,032,459.73
  5. Step 5: Solve for x
    x = 170,032,459.73/14,953.85
  6. Step 6: Final answer
    x = 11,370.48

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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.