Home / 12,917.12-19,375.58-8,554.10

Finding the Fourth Proportional to 12,917.12, 19,375.58 and 8,554.10

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Solution

The fourth proportional to 12,917.12, 19,375.58 and 8,554.10 is: 12,831.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.12 : 19,375.58 = 8,554.10 : x
  2. Step 2: Convert to fraction form
    12,917.12/19,375.58 = 8,554.10/x
  3. Step 3: Cross multiply
    12,917.12x = 19,375.58 × 8,554.10
  4. Step 4: Simplify right side
    12,917.12x = 165,740,648.88
  5. Step 5: Solve for x
    x = 165,740,648.88/12,917.12
  6. Step 6: Final answer
    x = 12,831.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.