Home / 9,921.64-14,880.84-3,680.19

Finding the Fourth Proportional to 9,921.64, 14,880.84 and 3,680.19

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Solution

The fourth proportional to 9,921.64, 14,880.84 and 3,680.19 is: 5,519.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.64 : 14,880.84 = 3,680.19 : x
  2. Step 2: Convert to fraction form
    9,921.64/14,880.84 = 3,680.19/x
  3. Step 3: Cross multiply
    9,921.64x = 14,880.84 × 3,680.19
  4. Step 4: Simplify right side
    9,921.64x = 54,764,318.56
  5. Step 5: Solve for x
    x = 54,764,318.56/9,921.64
  6. Step 6: Final answer
    x = 5,519.68

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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.