Home / 11,880.68-16,397.18-6,776.21

Finding the Fourth Proportional to 11,880.68, 16,397.18 and 6,776.21

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Solution

The fourth proportional to 11,880.68, 16,397.18 and 6,776.21 is: 9,352.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,880.68 : 16,397.18 = 6,776.21 : x
  2. Step 2: Convert to fraction form
    11,880.68/16,397.18 = 6,776.21/x
  3. Step 3: Cross multiply
    11,880.68x = 16,397.18 × 6,776.21
  4. Step 4: Simplify right side
    11,880.68x = 111,110,713.49
  5. Step 5: Solve for x
    x = 111,110,713.49/11,880.68
  6. Step 6: Final answer
    x = 9,352.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.