Home / 8,770.14-12,102.78-5,235.39

Finding the Fourth Proportional to 8,770.14, 12,102.78 and 5,235.39

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Solution

The fourth proportional to 8,770.14, 12,102.78 and 5,235.39 is: 7,224.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.14 : 12,102.78 = 5,235.39 : x
  2. Step 2: Convert to fraction form
    8,770.14/12,102.78 = 5,235.39/x
  3. Step 3: Cross multiply
    8,770.14x = 12,102.78 × 5,235.39
  4. Step 4: Simplify right side
    8,770.14x = 63,362,773.38
  5. Step 5: Solve for x
    x = 63,362,773.38/8,770.14
  6. Step 6: Final answer
    x = 7,224.83

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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.