Home / 12,917.48-19,376.16-8,554.48

Finding the Fourth Proportional to 12,917.48, 19,376.16 and 8,554.48

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Solution

The fourth proportional to 12,917.48, 19,376.16 and 8,554.48 is: 12,831.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.48 : 19,376.16 = 8,554.48 : x
  2. Step 2: Convert to fraction form
    12,917.48/19,376.16 = 8,554.48/x
  3. Step 3: Cross multiply
    12,917.48x = 19,376.16 × 8,554.48
  4. Step 4: Simplify right side
    12,917.48x = 165,752,973.20
  5. Step 5: Solve for x
    x = 165,752,973.20/12,917.48
  6. Step 6: Final answer
    x = 12,831.68

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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.