Home / 13,585.64-20,338.14-8,304.84

Finding the Fourth Proportional to 13,585.64, 20,338.14 and 8,304.84

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Solution

The fourth proportional to 13,585.64, 20,338.14 and 8,304.84 is: 12,432.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.64 : 20,338.14 = 8,304.84 : x
  2. Step 2: Convert to fraction form
    13,585.64/20,338.14 = 8,304.84/x
  3. Step 3: Cross multiply
    13,585.64x = 20,338.14 × 8,304.84
  4. Step 4: Simplify right side
    13,585.64x = 168,904,998.60
  5. Step 5: Solve for x
    x = 168,904,998.60/13,585.64
  6. Step 6: Final answer
    x = 12,432.61

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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.