Home / 9,282.59-13,919.63-5,121.21

Finding the Fourth Proportional to 9,282.59, 13,919.63 and 5,121.21

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Solution

The fourth proportional to 9,282.59, 13,919.63 and 5,121.21 is: 7,679.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,282.59 : 13,919.63 = 5,121.21 : x
  2. Step 2: Convert to fraction form
    9,282.59/13,919.63 = 5,121.21/x
  3. Step 3: Cross multiply
    9,282.59x = 13,919.63 × 5,121.21
  4. Step 4: Simplify right side
    9,282.59x = 71,285,322.75
  5. Step 5: Solve for x
    x = 71,285,322.75/9,282.59
  6. Step 6: Final answer
    x = 7,679.47

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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.