Home / 19,202.20-28,796.70-9,335.12

Finding the Fourth Proportional to 19,202.20, 28,796.70 and 9,335.12

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Solution

The fourth proportional to 19,202.20, 28,796.70 and 9,335.12 is: 13,999.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,202.20 : 28,796.70 = 9,335.12 : x
  2. Step 2: Convert to fraction form
    19,202.20/28,796.70 = 9,335.12/x
  3. Step 3: Cross multiply
    19,202.20x = 28,796.70 × 9,335.12
  4. Step 4: Simplify right side
    19,202.20x = 268,820,650.10
  5. Step 5: Solve for x
    x = 268,820,650.10/19,202.20
  6. Step 6: Final answer
    x = 13,999.47

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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.