Home / 12,677.76-19,014.96-3,911.92

Finding the Fourth Proportional to 12,677.76, 19,014.96 and 3,911.92

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Solution

The fourth proportional to 12,677.76, 19,014.96 and 3,911.92 is: 5,867.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,677.76 : 19,014.96 = 3,911.92 : x
  2. Step 2: Convert to fraction form
    12,677.76/19,014.96 = 3,911.92/x
  3. Step 3: Cross multiply
    12,677.76x = 19,014.96 × 3,911.92
  4. Step 4: Simplify right side
    12,677.76x = 74,385,002.32
  5. Step 5: Solve for x
    x = 74,385,002.32/12,677.76
  6. Step 6: Final answer
    x = 5,867.36

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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.