Home / 12,010.57-17,991.70-5,988.47

Finding the Fourth Proportional to 12,010.57, 17,991.70 and 5,988.47

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Solution

The fourth proportional to 12,010.57, 17,991.70 and 5,988.47 is: 8,970.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,010.57 : 17,991.70 = 5,988.47 : x
  2. Step 2: Convert to fraction form
    12,010.57/17,991.70 = 5,988.47/x
  3. Step 3: Cross multiply
    12,010.57x = 17,991.70 × 5,988.47
  4. Step 4: Simplify right side
    12,010.57x = 107,742,755.70
  5. Step 5: Solve for x
    x = 107,742,755.70/12,010.57
  6. Step 6: Final answer
    x = 8,970.66

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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.