Home / 13,328.52-19,987.02-4,092.36

Finding the Fourth Proportional to 13,328.52, 19,987.02 and 4,092.36

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Solution

The fourth proportional to 13,328.52, 19,987.02 and 4,092.36 is: 6,136.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.52 : 19,987.02 = 4,092.36 : x
  2. Step 2: Convert to fraction form
    13,328.52/19,987.02 = 4,092.36/x
  3. Step 3: Cross multiply
    13,328.52x = 19,987.02 × 4,092.36
  4. Step 4: Simplify right side
    13,328.52x = 81,794,081.17
  5. Step 5: Solve for x
    x = 81,794,081.17/13,328.52
  6. Step 6: Final answer
    x = 6,136.77

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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.