Home / 13,110.22-19,663.80-3,875.50

Finding the Fourth Proportional to 13,110.22, 19,663.80 and 3,875.50

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Solution

The fourth proportional to 13,110.22, 19,663.80 and 3,875.50 is: 5,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.22 : 19,663.80 = 3,875.50 : x
  2. Step 2: Convert to fraction form
    13,110.22/19,663.80 = 3,875.50/x
  3. Step 3: Cross multiply
    13,110.22x = 19,663.80 × 3,875.50
  4. Step 4: Simplify right side
    13,110.22x = 76,207,056.90
  5. Step 5: Solve for x
    x = 76,207,056.90/13,110.22
  6. Step 6: Final answer
    x = 5,812.80

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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.