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Finding the Fourth Proportional to 9,351.90, 13,999.80 and 9,019.62

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Solution

The fourth proportional to 9,351.90, 13,999.80 and 9,019.62 is: 13,502.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,351.90 : 13,999.80 = 9,019.62 : x
  2. Step 2: Convert to fraction form
    9,351.90/13,999.80 = 9,019.62/x
  3. Step 3: Cross multiply
    9,351.90x = 13,999.80 × 9,019.62
  4. Step 4: Simplify right side
    9,351.90x = 126,272,876.08
  5. Step 5: Solve for x
    x = 126,272,876.08/9,351.90
  6. Step 6: Final answer
    x = 13,502.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.