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Finding the Fourth Proportional to 13,159.48, 19,735.48 and 3,669.62

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Solution

The fourth proportional to 13,159.48, 19,735.48 and 3,669.62 is: 5,503.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.48 : 19,735.48 = 3,669.62 : x
  2. Step 2: Convert to fraction form
    13,159.48/19,735.48 = 3,669.62/x
  3. Step 3: Cross multiply
    13,159.48x = 19,735.48 × 3,669.62
  4. Step 4: Simplify right side
    13,159.48x = 72,421,712.12
  5. Step 5: Solve for x
    x = 72,421,712.12/13,159.48
  6. Step 6: Final answer
    x = 5,503.39

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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.