Home / 12,515.40-18,773.04-5,396.70

Finding the Fourth Proportional to 12,515.40, 18,773.04 and 5,396.70

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Solution

The fourth proportional to 12,515.40, 18,773.04 and 5,396.70 is: 8,095.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.40 : 18,773.04 = 5,396.70 : x
  2. Step 2: Convert to fraction form
    12,515.40/18,773.04 = 5,396.70/x
  3. Step 3: Cross multiply
    12,515.40x = 18,773.04 × 5,396.70
  4. Step 4: Simplify right side
    12,515.40x = 101,312,464.97
  5. Step 5: Solve for x
    x = 101,312,464.97/12,515.40
  6. Step 6: Final answer
    x = 8,095.02

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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.