Home / 12,740.88-19,091.84-5,341.32

Finding the Fourth Proportional to 12,740.88, 19,091.84 and 5,341.32

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Solution

The fourth proportional to 12,740.88, 19,091.84 and 5,341.32 is: 8,003.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.88 : 19,091.84 = 5,341.32 : x
  2. Step 2: Convert to fraction form
    12,740.88/19,091.84 = 5,341.32/x
  3. Step 3: Cross multiply
    12,740.88x = 19,091.84 × 5,341.32
  4. Step 4: Simplify right side
    12,740.88x = 101,975,626.83
  5. Step 5: Solve for x
    x = 101,975,626.83/12,740.88
  6. Step 6: Final answer
    x = 8,003.81

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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.