Home / 12,740.55-19,110.42-6,167.40

Finding the Fourth Proportional to 12,740.55, 19,110.42 and 6,167.40

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Solution

The fourth proportional to 12,740.55, 19,110.42 and 6,167.40 is: 9,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.55 : 19,110.42 = 6,167.40 : x
  2. Step 2: Convert to fraction form
    12,740.55/19,110.42 = 6,167.40/x
  3. Step 3: Cross multiply
    12,740.55x = 19,110.42 × 6,167.40
  4. Step 4: Simplify right side
    12,740.55x = 117,861,604.31
  5. Step 5: Solve for x
    x = 117,861,604.31/12,740.55
  6. Step 6: Final answer
    x = 9,250.90

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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.