Home / 12,740.94-19,113.03-3,975.12

Finding the Fourth Proportional to 12,740.94, 19,113.03 and 3,975.12

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Solution

The fourth proportional to 12,740.94, 19,113.03 and 3,975.12 is: 5,963.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.94 : 19,113.03 = 3,975.12 : x
  2. Step 2: Convert to fraction form
    12,740.94/19,113.03 = 3,975.12/x
  3. Step 3: Cross multiply
    12,740.94x = 19,113.03 × 3,975.12
  4. Step 4: Simplify right side
    12,740.94x = 75,976,587.81
  5. Step 5: Solve for x
    x = 75,976,587.81/12,740.94
  6. Step 6: Final answer
    x = 5,963.19

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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.