Home / 13,916.31-19,207.40-12,795.47

Finding the Fourth Proportional to 13,916.31, 19,207.40 and 12,795.47

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Solution

The fourth proportional to 13,916.31, 19,207.40 and 12,795.47 is: 17,660.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.31 : 19,207.40 = 12,795.47 : x
  2. Step 2: Convert to fraction form
    13,916.31/19,207.40 = 12,795.47/x
  3. Step 3: Cross multiply
    13,916.31x = 19,207.40 × 12,795.47
  4. Step 4: Simplify right side
    13,916.31x = 245,767,710.48
  5. Step 5: Solve for x
    x = 245,767,710.48/13,916.31
  6. Step 6: Final answer
    x = 17,660.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.