Home / 15,818.52-21,827.64-8,743.96

Finding the Fourth Proportional to 15,818.52, 21,827.64 and 8,743.96

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Solution

The fourth proportional to 15,818.52, 21,827.64 and 8,743.96 is: 12,065.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,818.52 : 21,827.64 = 8,743.96 : x
  2. Step 2: Convert to fraction form
    15,818.52/21,827.64 = 8,743.96/x
  3. Step 3: Cross multiply
    15,818.52x = 21,827.64 × 8,743.96
  4. Step 4: Simplify right side
    15,818.52x = 190,860,011.05
  5. Step 5: Solve for x
    x = 190,860,011.05/15,818.52
  6. Step 6: Final answer
    x = 12,065.60

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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.