Home / 13,239.64-19,881.42-11,065.24

Finding the Fourth Proportional to 13,239.64, 19,881.42 and 11,065.24

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Solution

The fourth proportional to 13,239.64, 19,881.42 and 11,065.24 is: 16,616.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.64 : 19,881.42 = 11,065.24 : x
  2. Step 2: Convert to fraction form
    13,239.64/19,881.42 = 11,065.24/x
  3. Step 3: Cross multiply
    13,239.64x = 19,881.42 × 11,065.24
  4. Step 4: Simplify right side
    13,239.64x = 219,992,683.84
  5. Step 5: Solve for x
    x = 219,992,683.84/13,239.64
  6. Step 6: Final answer
    x = 16,616.21

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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.