Home / 14,621.89-20,179.56-8,162.65

Finding the Fourth Proportional to 14,621.89, 20,179.56 and 8,162.65

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Solution

The fourth proportional to 14,621.89, 20,179.56 and 8,162.65 is: 11,265.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,621.89 : 20,179.56 = 8,162.65 : x
  2. Step 2: Convert to fraction form
    14,621.89/20,179.56 = 8,162.65/x
  3. Step 3: Cross multiply
    14,621.89x = 20,179.56 × 8,162.65
  4. Step 4: Simplify right side
    14,621.89x = 164,718,615.64
  5. Step 5: Solve for x
    x = 164,718,615.64/14,621.89
  6. Step 6: Final answer
    x = 11,265.21

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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.