Home / 13,816.32-20,708.25-6,405.18

Finding the Fourth Proportional to 13,816.32, 20,708.25 and 6,405.18

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Solution

The fourth proportional to 13,816.32, 20,708.25 and 6,405.18 is: 9,600.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.32 : 20,708.25 = 6,405.18 : x
  2. Step 2: Convert to fraction form
    13,816.32/20,708.25 = 6,405.18/x
  3. Step 3: Cross multiply
    13,816.32x = 20,708.25 × 6,405.18
  4. Step 4: Simplify right side
    13,816.32x = 132,640,044.72
  5. Step 5: Solve for x
    x = 132,640,044.72/13,816.32
  6. Step 6: Final answer
    x = 9,600.24

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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.