Home / 13,125.66-19,686.65-3,766.48

Finding the Fourth Proportional to 13,125.66, 19,686.65 and 3,766.48

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Solution

The fourth proportional to 13,125.66, 19,686.65 and 3,766.48 is: 5,649.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.66 : 19,686.65 = 3,766.48 : x
  2. Step 2: Convert to fraction form
    13,125.66/19,686.65 = 3,766.48/x
  3. Step 3: Cross multiply
    13,125.66x = 19,686.65 × 3,766.48
  4. Step 4: Simplify right side
    13,125.66x = 74,149,416.18
  5. Step 5: Solve for x
    x = 74,149,416.18/13,125.66
  6. Step 6: Final answer
    x = 5,649.19

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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.