Home / 13,963.49-20,911.06-9,018.14

Finding the Fourth Proportional to 13,963.49, 20,911.06 and 9,018.14

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Solution

The fourth proportional to 13,963.49, 20,911.06 and 9,018.14 is: 13,505.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,963.49 : 20,911.06 = 9,018.14 : x
  2. Step 2: Convert to fraction form
    13,963.49/20,911.06 = 9,018.14/x
  3. Step 3: Cross multiply
    13,963.49x = 20,911.06 × 9,018.14
  4. Step 4: Simplify right side
    13,963.49x = 188,578,773.35
  5. Step 5: Solve for x
    x = 188,578,773.35/13,963.49
  6. Step 6: Final answer
    x = 13,505.13

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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.