Home / 8,113.88-11,194.61-6,407.01

Finding the Fourth Proportional to 8,113.88, 11,194.61 and 6,407.01

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Solution

The fourth proportional to 8,113.88, 11,194.61 and 6,407.01 is: 8,839.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,113.88 : 11,194.61 = 6,407.01 : x
  2. Step 2: Convert to fraction form
    8,113.88/11,194.61 = 6,407.01/x
  3. Step 3: Cross multiply
    8,113.88x = 11,194.61 × 6,407.01
  4. Step 4: Simplify right side
    8,113.88x = 71,723,946.18
  5. Step 5: Solve for x
    x = 71,723,946.18/8,113.88
  6. Step 6: Final answer
    x = 8,839.66

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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.