Home / 13,127.13-19,695.83-7,936.65

Finding the Fourth Proportional to 13,127.13, 19,695.83 and 7,936.65

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Solution

The fourth proportional to 13,127.13, 19,695.83 and 7,936.65 is: 11,908.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.13 : 19,695.83 = 7,936.65 : x
  2. Step 2: Convert to fraction form
    13,127.13/19,695.83 = 7,936.65/x
  3. Step 3: Cross multiply
    13,127.13x = 19,695.83 × 7,936.65
  4. Step 4: Simplify right side
    13,127.13x = 156,318,869.49
  5. Step 5: Solve for x
    x = 156,318,869.49/13,127.13
  6. Step 6: Final answer
    x = 11,908.08

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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.