Home / 15,334.52-21,160.44-8,618.87

Finding the Fourth Proportional to 15,334.52, 21,160.44 and 8,618.87

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Solution

The fourth proportional to 15,334.52, 21,160.44 and 8,618.87 is: 11,893.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334.52 : 21,160.44 = 8,618.87 : x
  2. Step 2: Convert to fraction form
    15,334.52/21,160.44 = 8,618.87/x
  3. Step 3: Cross multiply
    15,334.52x = 21,160.44 × 8,618.87
  4. Step 4: Simplify right side
    15,334.52x = 182,379,134.40
  5. Step 5: Solve for x
    x = 182,379,134.40/15,334.52
  6. Step 6: Final answer
    x = 11,893.37

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1.5x scale

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.