Home / 11,985.93-17,981.54-3,666.59

Finding the Fourth Proportional to 11,985.93, 17,981.54 and 3,666.59

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Solution

The fourth proportional to 11,985.93, 17,981.54 and 3,666.59 is: 5,500.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985.93 : 17,981.54 = 3,666.59 : x
  2. Step 2: Convert to fraction form
    11,985.93/17,981.54 = 3,666.59/x
  3. Step 3: Cross multiply
    11,985.93x = 17,981.54 × 3,666.59
  4. Step 4: Simplify right side
    11,985.93x = 65,930,826.51
  5. Step 5: Solve for x
    x = 65,930,826.51/11,985.93
  6. Step 6: Final answer
    x = 5,500.69

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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.