Home / 8,636.88-11,919.08-5,098.80

Finding the Fourth Proportional to 8,636.88, 11,919.08 and 5,098.80

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Solution

The fourth proportional to 8,636.88, 11,919.08 and 5,098.80 is: 7,036.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.88 : 11,919.08 = 5,098.80 : x
  2. Step 2: Convert to fraction form
    8,636.88/11,919.08 = 5,098.80/x
  3. Step 3: Cross multiply
    8,636.88x = 11,919.08 × 5,098.80
  4. Step 4: Simplify right side
    8,636.88x = 60,773,005.10
  5. Step 5: Solve for x
    x = 60,773,005.10/8,636.88
  6. Step 6: Final answer
    x = 7,036.45

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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.