Home / 15,468.36-21,347.31-8,751.43

Finding the Fourth Proportional to 15,468.36, 21,347.31 and 8,751.43

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Solution

The fourth proportional to 15,468.36, 21,347.31 and 8,751.43 is: 12,077.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,468.36 : 21,347.31 = 8,751.43 : x
  2. Step 2: Convert to fraction form
    15,468.36/21,347.31 = 8,751.43/x
  3. Step 3: Cross multiply
    15,468.36x = 21,347.31 × 8,751.43
  4. Step 4: Simplify right side
    15,468.36x = 186,819,489.15
  5. Step 5: Solve for x
    x = 186,819,489.15/15,468.36
  6. Step 6: Final answer
    x = 12,077.52

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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.