Home / 13,092.87-18,072.02-7,990.23

Finding the Fourth Proportional to 13,092.87, 18,072.02 and 7,990.23

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Solution

The fourth proportional to 13,092.87, 18,072.02 and 7,990.23 is: 11,028.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,092.87 : 18,072.02 = 7,990.23 : x
  2. Step 2: Convert to fraction form
    13,092.87/18,072.02 = 7,990.23/x
  3. Step 3: Cross multiply
    13,092.87x = 18,072.02 × 7,990.23
  4. Step 4: Simplify right side
    13,092.87x = 144,399,596.36
  5. Step 5: Solve for x
    x = 144,399,596.36/13,092.87
  6. Step 6: Final answer
    x = 11,028.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.