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Finding the Fourth Proportional to 19,201.96, 28,801.98 and 7,517.32

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Solution

The fourth proportional to 19,201.96, 28,801.98 and 7,517.32 is: 11,275.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,201.96 : 28,801.98 = 7,517.32 : x
  2. Step 2: Convert to fraction form
    19,201.96/28,801.98 = 7,517.32/x
  3. Step 3: Cross multiply
    19,201.96x = 28,801.98 × 7,517.32
  4. Step 4: Simplify right side
    19,201.96x = 216,513,700.29
  5. Step 5: Solve for x
    x = 216,513,700.29/19,201.96
  6. Step 6: Final answer
    x = 11,275.60

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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.