Home / 8,528.12-12,770.81-5,398.68

Finding the Fourth Proportional to 8,528.12, 12,770.81 and 5,398.68

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Solution

The fourth proportional to 8,528.12, 12,770.81 and 5,398.68 is: 8,084.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528.12 : 12,770.81 = 5,398.68 : x
  2. Step 2: Convert to fraction form
    8,528.12/12,770.81 = 5,398.68/x
  3. Step 3: Cross multiply
    8,528.12x = 12,770.81 × 5,398.68
  4. Step 4: Simplify right side
    8,528.12x = 68,945,516.53
  5. Step 5: Solve for x
    x = 68,945,516.53/8,528.12
  6. Step 6: Final answer
    x = 8,084.49

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1.5x scale

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.