Home / 13,133.15-18,127.79-8,098.95

Finding the Fourth Proportional to 13,133.15, 18,127.79 and 8,098.95

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Solution

The fourth proportional to 13,133.15, 18,127.79 and 8,098.95 is: 11,179.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133.15 : 18,127.79 = 8,098.95 : x
  2. Step 2: Convert to fraction form
    13,133.15/18,127.79 = 8,098.95/x
  3. Step 3: Cross multiply
    13,133.15x = 18,127.79 × 8,098.95
  4. Step 4: Simplify right side
    13,133.15x = 146,816,064.82
  5. Step 5: Solve for x
    x = 146,816,064.82/13,133.15
  6. Step 6: Final answer
    x = 11,179.04

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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.