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Finding the Fourth Proportional to 13,201.61, 19,802.42 and 3,340.89

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Solution

The fourth proportional to 13,201.61, 19,802.42 and 3,340.89 is: 5,011.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.61 : 19,802.42 = 3,340.89 : x
  2. Step 2: Convert to fraction form
    13,201.61/19,802.42 = 3,340.89/x
  3. Step 3: Cross multiply
    13,201.61x = 19,802.42 × 3,340.89
  4. Step 4: Simplify right side
    13,201.61x = 66,157,607.94
  5. Step 5: Solve for x
    x = 66,157,607.94/13,201.61
  6. Step 6: Final answer
    x = 5,011.33

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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.