Home / 14,695.70-20,280.11-7,981.44

Finding the Fourth Proportional to 14,695.70, 20,280.11 and 7,981.44

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Solution

The fourth proportional to 14,695.70, 20,280.11 and 7,981.44 is: 11,014.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,695.70 : 20,280.11 = 7,981.44 : x
  2. Step 2: Convert to fraction form
    14,695.70/20,280.11 = 7,981.44/x
  3. Step 3: Cross multiply
    14,695.70x = 20,280.11 × 7,981.44
  4. Step 4: Simplify right side
    14,695.70x = 161,864,481.16
  5. Step 5: Solve for x
    x = 161,864,481.16/14,695.70
  6. Step 6: Final answer
    x = 11,014.41

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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.