Home / 12,880.86-19,322.19-4,116.48

Finding the Fourth Proportional to 12,880.86, 19,322.19 and 4,116.48

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Solution

The fourth proportional to 12,880.86, 19,322.19 and 4,116.48 is: 6,175.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880.86 : 19,322.19 = 4,116.48 : x
  2. Step 2: Convert to fraction form
    12,880.86/19,322.19 = 4,116.48/x
  3. Step 3: Cross multiply
    12,880.86x = 19,322.19 × 4,116.48
  4. Step 4: Simplify right side
    12,880.86x = 79,539,408.69
  5. Step 5: Solve for x
    x = 79,539,408.69/12,880.86
  6. Step 6: Final answer
    x = 6,175.01

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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.