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Finding the Fourth Proportional to 9,319.05, 13,978.58 and 3,476.25

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Solution

The fourth proportional to 9,319.05, 13,978.58 and 3,476.25 is: 5,214.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.05 : 13,978.58 = 3,476.25 : x
  2. Step 2: Convert to fraction form
    9,319.05/13,978.58 = 3,476.25/x
  3. Step 3: Cross multiply
    9,319.05x = 13,978.58 × 3,476.25
  4. Step 4: Simplify right side
    9,319.05x = 48,593,021.34
  5. Step 5: Solve for x
    x = 48,593,021.34/9,319.05
  6. Step 6: Final answer
    x = 5,214.38

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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.