Home / 15,759.78-23,643.30-5,371.50

Finding the Fourth Proportional to 15,759.78, 23,643.30 and 5,371.50

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Solution

The fourth proportional to 15,759.78, 23,643.30 and 5,371.50 is: 8,058.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,759.78 : 23,643.30 = 5,371.50 : x
  2. Step 2: Convert to fraction form
    15,759.78/23,643.30 = 5,371.50/x
  3. Step 3: Cross multiply
    15,759.78x = 23,643.30 × 5,371.50
  4. Step 4: Simplify right side
    15,759.78x = 126,999,985.95
  5. Step 5: Solve for x
    x = 126,999,985.95/15,759.78
  6. Step 6: Final answer
    x = 8,058.49

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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.