Home / 9,193.82-12,690.08-5,419.18

Finding the Fourth Proportional to 9,193.82, 12,690.08 and 5,419.18

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Solution

The fourth proportional to 9,193.82, 12,690.08 and 5,419.18 is: 7,480.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,193.82 : 12,690.08 = 5,419.18 : x
  2. Step 2: Convert to fraction form
    9,193.82/12,690.08 = 5,419.18/x
  3. Step 3: Cross multiply
    9,193.82x = 12,690.08 × 5,419.18
  4. Step 4: Simplify right side
    9,193.82x = 68,769,827.73
  5. Step 5: Solve for x
    x = 68,769,827.73/9,193.82
  6. Step 6: Final answer
    x = 7,480.01

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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.