Home / 13,666.36-20,515.74-11,502.04

Finding the Fourth Proportional to 13,666.36, 20,515.74 and 11,502.04

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Solution

The fourth proportional to 13,666.36, 20,515.74 and 11,502.04 is: 17,266.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.36 : 20,515.74 = 11,502.04 : x
  2. Step 2: Convert to fraction form
    13,666.36/20,515.74 = 11,502.04/x
  3. Step 3: Cross multiply
    13,666.36x = 20,515.74 × 11,502.04
  4. Step 4: Simplify right side
    13,666.36x = 235,972,862.11
  5. Step 5: Solve for x
    x = 235,972,862.11/13,666.36
  6. Step 6: Final answer
    x = 17,266.69

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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.