Home / 19,287.25-26,615.15-10,787.90

Finding the Fourth Proportional to 19,287.25, 26,615.15 and 10,787.90

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Solution

The fourth proportional to 19,287.25, 26,615.15 and 10,787.90 is: 14,886.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.25 : 26,615.15 = 10,787.90 : x
  2. Step 2: Convert to fraction form
    19,287.25/26,615.15 = 10,787.90/x
  3. Step 3: Cross multiply
    19,287.25x = 26,615.15 × 10,787.90
  4. Step 4: Simplify right side
    19,287.25x = 287,121,389.67
  5. Step 5: Solve for x
    x = 287,121,389.67/19,287.25
  6. Step 6: Final answer
    x = 14,886.59

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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.