Home / 12,001.70-18,001.87-3,681.69

Finding the Fourth Proportional to 12,001.70, 18,001.87 and 3,681.69

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Solution

The fourth proportional to 12,001.70, 18,001.87 and 3,681.69 is: 5,522.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,001.70 : 18,001.87 = 3,681.69 : x
  2. Step 2: Convert to fraction form
    12,001.70/18,001.87 = 3,681.69/x
  3. Step 3: Cross multiply
    12,001.70x = 18,001.87 × 3,681.69
  4. Step 4: Simplify right side
    12,001.70x = 66,277,304.76
  5. Step 5: Solve for x
    x = 66,277,304.76/12,001.70
  6. Step 6: Final answer
    x = 5,522.33

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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.