Home / 15,415.76-23,101.32-8,389.82

Finding the Fourth Proportional to 15,415.76, 23,101.32 and 8,389.82

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Solution

The fourth proportional to 15,415.76, 23,101.32 and 8,389.82 is: 12,572.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415.76 : 23,101.32 = 8,389.82 : x
  2. Step 2: Convert to fraction form
    15,415.76/23,101.32 = 8,389.82/x
  3. Step 3: Cross multiply
    15,415.76x = 23,101.32 × 8,389.82
  4. Step 4: Simplify right side
    15,415.76x = 193,815,916.56
  5. Step 5: Solve for x
    x = 193,815,916.56/15,415.76
  6. Step 6: Final answer
    x = 12,572.58

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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.