Home / 11,917.74-17,875.77-3,152.46

Finding the Fourth Proportional to 11,917.74, 17,875.77 and 3,152.46

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Solution

The fourth proportional to 11,917.74, 17,875.77 and 3,152.46 is: 4,728.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.74 : 17,875.77 = 3,152.46 : x
  2. Step 2: Convert to fraction form
    11,917.74/17,875.77 = 3,152.46/x
  3. Step 3: Cross multiply
    11,917.74x = 17,875.77 × 3,152.46
  4. Step 4: Simplify right side
    11,917.74x = 56,352,649.89
  5. Step 5: Solve for x
    x = 56,352,649.89/11,917.74
  6. Step 6: Final answer
    x = 4,728.47

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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.