Home / 13,305.24-18,362.54-9,942.21

Finding the Fourth Proportional to 13,305.24, 18,362.54 and 9,942.21

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Solution

The fourth proportional to 13,305.24, 18,362.54 and 9,942.21 is: 13,721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.24 : 18,362.54 = 9,942.21 : x
  2. Step 2: Convert to fraction form
    13,305.24/18,362.54 = 9,942.21/x
  3. Step 3: Cross multiply
    13,305.24x = 18,362.54 × 9,942.21
  4. Step 4: Simplify right side
    13,305.24x = 182,564,179.10
  5. Step 5: Solve for x
    x = 182,564,179.10/13,305.24
  6. Step 6: Final answer
    x = 13,721.22

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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.