Home / 15,587.76-21,511.64-8,514.72

Finding the Fourth Proportional to 15,587.76, 21,511.64 and 8,514.72

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Solution

The fourth proportional to 15,587.76, 21,511.64 and 8,514.72 is: 11,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,587.76 : 21,511.64 = 8,514.72 : x
  2. Step 2: Convert to fraction form
    15,587.76/21,511.64 = 8,514.72/x
  3. Step 3: Cross multiply
    15,587.76x = 21,511.64 × 8,514.72
  4. Step 4: Simplify right side
    15,587.76x = 183,165,591.34
  5. Step 5: Solve for x
    x = 183,165,591.34/15,587.76
  6. Step 6: Final answer
    x = 11,750.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.