Home / 13,240.71-19,875.65-11,877.48

Finding the Fourth Proportional to 13,240.71, 19,875.65 and 11,877.48

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Solution

The fourth proportional to 13,240.71, 19,875.65 and 11,877.48 is: 17,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.71 : 19,875.65 = 11,877.48 : x
  2. Step 2: Convert to fraction form
    13,240.71/19,875.65 = 11,877.48/x
  3. Step 3: Cross multiply
    13,240.71x = 19,875.65 × 11,877.48
  4. Step 4: Simplify right side
    13,240.71x = 236,072,575.97
  5. Step 5: Solve for x
    x = 236,072,575.97/13,240.71
  6. Step 6: Final answer
    x = 17,829.30

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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.