Home / 8,811.96-12,160.88-5,274.48

Finding the Fourth Proportional to 8,811.96, 12,160.88 and 5,274.48

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Solution

The fourth proportional to 8,811.96, 12,160.88 and 5,274.48 is: 7,279.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.96 : 12,160.88 = 5,274.48 : x
  2. Step 2: Convert to fraction form
    8,811.96/12,160.88 = 5,274.48/x
  3. Step 3: Cross multiply
    8,811.96x = 12,160.88 × 5,274.48
  4. Step 4: Simplify right side
    8,811.96x = 64,142,318.34
  5. Step 5: Solve for x
    x = 64,142,318.34/8,811.96
  6. Step 6: Final answer
    x = 7,279.01

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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.