Home / 11,384.29-17,078.03-3,987.05

Finding the Fourth Proportional to 11,384.29, 17,078.03 and 3,987.05

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Solution

The fourth proportional to 11,384.29, 17,078.03 and 3,987.05 is: 5,981.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,384.29 : 17,078.03 = 3,987.05 : x
  2. Step 2: Convert to fraction form
    11,384.29/17,078.03 = 3,987.05/x
  3. Step 3: Cross multiply
    11,384.29x = 17,078.03 × 3,987.05
  4. Step 4: Simplify right side
    11,384.29x = 68,090,939.58
  5. Step 5: Solve for x
    x = 68,090,939.58/11,384.29
  6. Step 6: Final answer
    x = 5,981.13

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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.