Home / 13,854.39-19,118.34-7,886.04

Finding the Fourth Proportional to 13,854.39, 19,118.34 and 7,886.04

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Solution

The fourth proportional to 13,854.39, 19,118.34 and 7,886.04 is: 10,882.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854.39 : 19,118.34 = 7,886.04 : x
  2. Step 2: Convert to fraction form
    13,854.39/19,118.34 = 7,886.04/x
  3. Step 3: Cross multiply
    13,854.39x = 19,118.34 × 7,886.04
  4. Step 4: Simplify right side
    13,854.39x = 150,767,993.97
  5. Step 5: Solve for x
    x = 150,767,993.97/13,854.39
  6. Step 6: Final answer
    x = 10,882.33

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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.