Home / 12,873.87-19,314.45-7,613.55

Finding the Fourth Proportional to 12,873.87, 19,314.45 and 7,613.55

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Solution

The fourth proportional to 12,873.87, 19,314.45 and 7,613.55 is: 11,422.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,873.87 : 19,314.45 = 7,613.55 : x
  2. Step 2: Convert to fraction form
    12,873.87/19,314.45 = 7,613.55/x
  3. Step 3: Cross multiply
    12,873.87x = 19,314.45 × 7,613.55
  4. Step 4: Simplify right side
    12,873.87x = 147,051,530.80
  5. Step 5: Solve for x
    x = 147,051,530.80/12,873.87
  6. Step 6: Final answer
    x = 11,422.48

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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.