Home / 13,175.83-19,762.29-3,315.11

Finding the Fourth Proportional to 13,175.83, 19,762.29 and 3,315.11

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Solution

The fourth proportional to 13,175.83, 19,762.29 and 3,315.11 is: 4,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175.83 : 19,762.29 = 3,315.11 : x
  2. Step 2: Convert to fraction form
    13,175.83/19,762.29 = 3,315.11/x
  3. Step 3: Cross multiply
    13,175.83x = 19,762.29 × 3,315.11
  4. Step 4: Simplify right side
    13,175.83x = 65,514,165.20
  5. Step 5: Solve for x
    x = 65,514,165.20/13,175.83
  6. Step 6: Final answer
    x = 4,972.30

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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.