Home / 12,713.62-19,074.57-6,140.56

Finding the Fourth Proportional to 12,713.62, 19,074.57 and 6,140.56

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Solution

The fourth proportional to 12,713.62, 19,074.57 and 6,140.56 is: 9,212.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,713.62 : 19,074.57 = 6,140.56 : x
  2. Step 2: Convert to fraction form
    12,713.62/19,074.57 = 6,140.56/x
  3. Step 3: Cross multiply
    12,713.62x = 19,074.57 × 6,140.56
  4. Step 4: Simplify right side
    12,713.62x = 117,128,541.56
  5. Step 5: Solve for x
    x = 117,128,541.56/12,713.62
  6. Step 6: Final answer
    x = 9,212.84

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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.