Home / 18,379.12-25,335.84-11,300.08

Finding the Fourth Proportional to 18,379.12, 25,335.84 and 11,300.08

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Solution

The fourth proportional to 18,379.12, 25,335.84 and 11,300.08 is: 15,577.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379.12 : 25,335.84 = 11,300.08 : x
  2. Step 2: Convert to fraction form
    18,379.12/25,335.84 = 11,300.08/x
  3. Step 3: Cross multiply
    18,379.12x = 25,335.84 × 11,300.08
  4. Step 4: Simplify right side
    18,379.12x = 286,297,018.87
  5. Step 5: Solve for x
    x = 286,297,018.87/18,379.12
  6. Step 6: Final answer
    x = 15,577.30

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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.