Home / 13,445.66-20,171.76-4,680.62

Finding the Fourth Proportional to 13,445.66, 20,171.76 and 4,680.62

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Solution

The fourth proportional to 13,445.66, 20,171.76 and 4,680.62 is: 7,022.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.66 : 20,171.76 = 4,680.62 : x
  2. Step 2: Convert to fraction form
    13,445.66/20,171.76 = 4,680.62/x
  3. Step 3: Cross multiply
    13,445.66x = 20,171.76 × 4,680.62
  4. Step 4: Simplify right side
    13,445.66x = 94,416,343.29
  5. Step 5: Solve for x
    x = 94,416,343.29/13,445.66
  6. Step 6: Final answer
    x = 7,022.07

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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.