Home / 11,820.30-17,730.45-3,501.60

Finding the Fourth Proportional to 11,820.30, 17,730.45 and 3,501.60

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Solution

The fourth proportional to 11,820.30, 17,730.45 and 3,501.60 is: 5,252.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.30 : 17,730.45 = 3,501.60 : x
  2. Step 2: Convert to fraction form
    11,820.30/17,730.45 = 3,501.60/x
  3. Step 3: Cross multiply
    11,820.30x = 17,730.45 × 3,501.60
  4. Step 4: Simplify right side
    11,820.30x = 62,084,943.72
  5. Step 5: Solve for x
    x = 62,084,943.72/11,820.30
  6. Step 6: Final answer
    x = 5,252.40

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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.