Home / 13,990.62-19,306.47-7,617.24

Finding the Fourth Proportional to 13,990.62, 19,306.47 and 7,617.24

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Solution

The fourth proportional to 13,990.62, 19,306.47 and 7,617.24 is: 10,511.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.62 : 19,306.47 = 7,617.24 : x
  2. Step 2: Convert to fraction form
    13,990.62/19,306.47 = 7,617.24/x
  3. Step 3: Cross multiply
    13,990.62x = 19,306.47 × 7,617.24
  4. Step 4: Simplify right side
    13,990.62x = 147,062,015.54
  5. Step 5: Solve for x
    x = 147,062,015.54/13,990.62
  6. Step 6: Final answer
    x = 10,511.47

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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.