Home / 12,899.86-19,349.81-3,540.01

Finding the Fourth Proportional to 12,899.86, 19,349.81 and 3,540.01

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Solution

The fourth proportional to 12,899.86, 19,349.81 and 3,540.01 is: 5,310.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,899.86 : 19,349.81 = 3,540.01 : x
  2. Step 2: Convert to fraction form
    12,899.86/19,349.81 = 3,540.01/x
  3. Step 3: Cross multiply
    12,899.86x = 19,349.81 × 3,540.01
  4. Step 4: Simplify right side
    12,899.86x = 68,498,424.15
  5. Step 5: Solve for x
    x = 68,498,424.15/12,899.86
  6. Step 6: Final answer
    x = 5,310.01

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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.