Home / 13,653.33-18,843.41-7,686.17

Finding the Fourth Proportional to 13,653.33, 18,843.41 and 7,686.17

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Solution

The fourth proportional to 13,653.33, 18,843.41 and 7,686.17 is: 10,607.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.33 : 18,843.41 = 7,686.17 : x
  2. Step 2: Convert to fraction form
    13,653.33/18,843.41 = 7,686.17/x
  3. Step 3: Cross multiply
    13,653.33x = 18,843.41 × 7,686.17
  4. Step 4: Simplify right side
    13,653.33x = 144,833,614.21
  5. Step 5: Solve for x
    x = 144,833,614.21/13,653.33
  6. Step 6: Final answer
    x = 10,607.93

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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.