Home / 12,990.93-17,927.37-7,022.55

Finding the Fourth Proportional to 12,990.93, 17,927.37 and 7,022.55

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Solution

The fourth proportional to 12,990.93, 17,927.37 and 7,022.55 is: 9,691.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,990.93 : 17,927.37 = 7,022.55 : x
  2. Step 2: Convert to fraction form
    12,990.93/17,927.37 = 7,022.55/x
  3. Step 3: Cross multiply
    12,990.93x = 17,927.37 × 7,022.55
  4. Step 4: Simplify right side
    12,990.93x = 125,895,824.93
  5. Step 5: Solve for x
    x = 125,895,824.93/12,990.93
  6. Step 6: Final answer
    x = 9,691.05

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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.