Home / 11,989.02-17,980.14-7,177.26

Finding the Fourth Proportional to 11,989.02, 17,980.14 and 7,177.26

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Solution

The fourth proportional to 11,989.02, 17,980.14 and 7,177.26 is: 10,763.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.02 : 17,980.14 = 7,177.26 : x
  2. Step 2: Convert to fraction form
    11,989.02/17,980.14 = 7,177.26/x
  3. Step 3: Cross multiply
    11,989.02x = 17,980.14 × 7,177.26
  4. Step 4: Simplify right side
    11,989.02x = 129,048,139.62
  5. Step 5: Solve for x
    x = 129,048,139.62/11,989.02
  6. Step 6: Final answer
    x = 10,763.86

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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.