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Finding the Fourth Proportional to 8,670.38, 11,965.13 and 6,019.33

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Solution

The fourth proportional to 8,670.38, 11,965.13 and 6,019.33 is: 8,306.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,670.38 : 11,965.13 = 6,019.33 : x
  2. Step 2: Convert to fraction form
    8,670.38/11,965.13 = 6,019.33/x
  3. Step 3: Cross multiply
    8,670.38x = 11,965.13 × 6,019.33
  4. Step 4: Simplify right side
    8,670.38x = 72,022,008.95
  5. Step 5: Solve for x
    x = 72,022,008.95/8,670.38
  6. Step 6: Final answer
    x = 8,306.67

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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.