Home / 7,981.46-11,014.89-4,623.20

Finding the Fourth Proportional to 7,981.46, 11,014.89 and 4,623.20

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Solution

The fourth proportional to 7,981.46, 11,014.89 and 4,623.20 is: 6,380.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.46 : 11,014.89 = 4,623.20 : x
  2. Step 2: Convert to fraction form
    7,981.46/11,014.89 = 4,623.20/x
  3. Step 3: Cross multiply
    7,981.46x = 11,014.89 × 4,623.20
  4. Step 4: Simplify right side
    7,981.46x = 50,924,039.45
  5. Step 5: Solve for x
    x = 50,924,039.45/7,981.46
  6. Step 6: Final answer
    x = 6,380.29

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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.