Home / 11,987.10-17,983.91-3,666.93

Finding the Fourth Proportional to 11,987.10, 17,983.91 and 3,666.93

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Solution

The fourth proportional to 11,987.10, 17,983.91 and 3,666.93 is: 5,501.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.10 : 17,983.91 = 3,666.93 : x
  2. Step 2: Convert to fraction form
    11,987.10/17,983.91 = 3,666.93/x
  3. Step 3: Cross multiply
    11,987.10x = 17,983.91 × 3,666.93
  4. Step 4: Simplify right side
    11,987.10x = 65,945,630.84
  5. Step 5: Solve for x
    x = 65,945,630.84/11,987.10
  6. Step 6: Final answer
    x = 5,501.39

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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.