Home / 12,487.74-18,732.21-4,695.95

Finding the Fourth Proportional to 12,487.74, 18,732.21 and 4,695.95

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Solution

The fourth proportional to 12,487.74, 18,732.21 and 4,695.95 is: 7,044.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.74 : 18,732.21 = 4,695.95 : x
  2. Step 2: Convert to fraction form
    12,487.74/18,732.21 = 4,695.95/x
  3. Step 3: Cross multiply
    12,487.74x = 18,732.21 × 4,695.95
  4. Step 4: Simplify right side
    12,487.74x = 87,965,427.89
  5. Step 5: Solve for x
    x = 87,965,427.89/12,487.74
  6. Step 6: Final answer
    x = 7,044.14

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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.