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Finding the Fourth Proportional to 7,956.80, 10,970.04 and 5,119.08

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Solution

The fourth proportional to 7,956.80, 10,970.04 and 5,119.08 is: 7,057.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.80 : 10,970.04 = 5,119.08 : x
  2. Step 2: Convert to fraction form
    7,956.80/10,970.04 = 5,119.08/x
  3. Step 3: Cross multiply
    7,956.80x = 10,970.04 × 5,119.08
  4. Step 4: Simplify right side
    7,956.80x = 56,156,512.36
  5. Step 5: Solve for x
    x = 56,156,512.36/7,956.80
  6. Step 6: Final answer
    x = 7,057.68

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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.