Home / 12,005.03-18,010.59-3,685.47

Finding the Fourth Proportional to 12,005.03, 18,010.59 and 3,685.47

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Solution

The fourth proportional to 12,005.03, 18,010.59 and 3,685.47 is: 5,529.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,005.03 : 18,010.59 = 3,685.47 : x
  2. Step 2: Convert to fraction form
    12,005.03/18,010.59 = 3,685.47/x
  3. Step 3: Cross multiply
    12,005.03x = 18,010.59 × 3,685.47
  4. Step 4: Simplify right side
    12,005.03x = 66,377,489.13
  5. Step 5: Solve for x
    x = 66,377,489.13/12,005.03
  6. Step 6: Final answer
    x = 5,529.14

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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.