Home / 13,184.28-18,194.20-7,215.94

Finding the Fourth Proportional to 13,184.28, 18,194.20 and 7,215.94

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Solution

The fourth proportional to 13,184.28, 18,194.20 and 7,215.94 is: 9,957.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.28 : 18,194.20 = 7,215.94 : x
  2. Step 2: Convert to fraction form
    13,184.28/18,194.20 = 7,215.94/x
  3. Step 3: Cross multiply
    13,184.28x = 18,194.20 × 7,215.94
  4. Step 4: Simplify right side
    13,184.28x = 131,288,255.55
  5. Step 5: Solve for x
    x = 131,288,255.55/13,184.28
  6. Step 6: Final answer
    x = 9,957.94

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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.