Home / 8,770.75-12,103.28-5,188.03

Finding the Fourth Proportional to 8,770.75, 12,103.28 and 5,188.03

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Solution

The fourth proportional to 8,770.75, 12,103.28 and 5,188.03 is: 7,159.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.75 : 12,103.28 = 5,188.03 : x
  2. Step 2: Convert to fraction form
    8,770.75/12,103.28 = 5,188.03/x
  3. Step 3: Cross multiply
    8,770.75x = 12,103.28 × 5,188.03
  4. Step 4: Simplify right side
    8,770.75x = 62,792,179.74
  5. Step 5: Solve for x
    x = 62,792,179.74/8,770.75
  6. Step 6: Final answer
    x = 7,159.27

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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.