Home / 13,109.60-19,664.40-3,248.80

Finding the Fourth Proportional to 13,109.60, 19,664.40 and 3,248.80

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Solution

The fourth proportional to 13,109.60, 19,664.40 and 3,248.80 is: 4,873.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109.60 : 19,664.40 = 3,248.80 : x
  2. Step 2: Convert to fraction form
    13,109.60/19,664.40 = 3,248.80/x
  3. Step 3: Cross multiply
    13,109.60x = 19,664.40 × 3,248.80
  4. Step 4: Simplify right side
    13,109.60x = 63,885,702.72
  5. Step 5: Solve for x
    x = 63,885,702.72/13,109.60
  6. Step 6: Final answer
    x = 4,873.20

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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.