Home / 13,679.14-18,877.31-8,017.24

Finding the Fourth Proportional to 13,679.14, 18,877.31 and 8,017.24

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Solution

The fourth proportional to 13,679.14, 18,877.31 and 8,017.24 is: 11,063.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,679.14 : 18,877.31 = 8,017.24 : x
  2. Step 2: Convert to fraction form
    13,679.14/18,877.31 = 8,017.24/x
  3. Step 3: Cross multiply
    13,679.14x = 18,877.31 × 8,017.24
  4. Step 4: Simplify right side
    13,679.14x = 151,343,924.82
  5. Step 5: Solve for x
    x = 151,343,924.82/13,679.14
  6. Step 6: Final answer
    x = 11,063.85

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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.