Home / 8,684.42-11,981.68-5,325.55

Finding the Fourth Proportional to 8,684.42, 11,981.68 and 5,325.55

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Solution

The fourth proportional to 8,684.42, 11,981.68 and 5,325.55 is: 7,347.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684.42 : 11,981.68 = 5,325.55 : x
  2. Step 2: Convert to fraction form
    8,684.42/11,981.68 = 5,325.55/x
  3. Step 3: Cross multiply
    8,684.42x = 11,981.68 × 5,325.55
  4. Step 4: Simplify right side
    8,684.42x = 63,809,035.92
  5. Step 5: Solve for x
    x = 63,809,035.92/8,684.42
  6. Step 6: Final answer
    x = 7,347.53

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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.