Home / 14,150.40-19,530.06-8,181.12

Finding the Fourth Proportional to 14,150.40, 19,530.06 and 8,181.12

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Solution

The fourth proportional to 14,150.40, 19,530.06 and 8,181.12 is: 11,291.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,150.40 : 19,530.06 = 8,181.12 : x
  2. Step 2: Convert to fraction form
    14,150.40/19,530.06 = 8,181.12/x
  3. Step 3: Cross multiply
    14,150.40x = 19,530.06 × 8,181.12
  4. Step 4: Simplify right side
    14,150.40x = 159,777,764.47
  5. Step 5: Solve for x
    x = 159,777,764.47/14,150.40
  6. Step 6: Final answer
    x = 11,291.40

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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.