Home / 8,635.35-11,918.90-5,658.39

Finding the Fourth Proportional to 8,635.35, 11,918.90 and 5,658.39

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Solution

The fourth proportional to 8,635.35, 11,918.90 and 5,658.39 is: 7,809.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.35 : 11,918.90 = 5,658.39 : x
  2. Step 2: Convert to fraction form
    8,635.35/11,918.90 = 5,658.39/x
  3. Step 3: Cross multiply
    8,635.35x = 11,918.90 × 5,658.39
  4. Step 4: Simplify right side
    8,635.35x = 67,441,756.28
  5. Step 5: Solve for x
    x = 67,441,756.28/8,635.35
  6. Step 6: Final answer
    x = 7,809.96

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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.