Home / 12,770.15-19,148.55-5,744.07

Finding the Fourth Proportional to 12,770.15, 19,148.55 and 5,744.07

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Solution

The fourth proportional to 12,770.15, 19,148.55 and 5,744.07 is: 8,613.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,770.15 : 19,148.55 = 5,744.07 : x
  2. Step 2: Convert to fraction form
    12,770.15/19,148.55 = 5,744.07/x
  3. Step 3: Cross multiply
    12,770.15x = 19,148.55 × 5,744.07
  4. Step 4: Simplify right side
    12,770.15x = 109,990,611.60
  5. Step 5: Solve for x
    x = 109,990,611.60/12,770.15
  6. Step 6: Final answer
    x = 8,613.11

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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.