Home / 13,989.73-19,305.35-7,616.20

Finding the Fourth Proportional to 13,989.73, 19,305.35 and 7,616.20

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Solution

The fourth proportional to 13,989.73, 19,305.35 and 7,616.20 is: 10,510.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.73 : 19,305.35 = 7,616.20 : x
  2. Step 2: Convert to fraction form
    13,989.73/19,305.35 = 7,616.20/x
  3. Step 3: Cross multiply
    13,989.73x = 19,305.35 × 7,616.20
  4. Step 4: Simplify right side
    13,989.73x = 147,033,310.14
  5. Step 5: Solve for x
    x = 147,033,310.14/13,989.73
  6. Step 6: Final answer
    x = 10,510.09

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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.