Home / 11,007.12-15,192.72-6,818.88

Finding the Fourth Proportional to 11,007.12, 15,192.72 and 6,818.88

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Solution

The fourth proportional to 11,007.12, 15,192.72 and 6,818.88 is: 9,411.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,007.12 : 15,192.72 = 6,818.88 : x
  2. Step 2: Convert to fraction form
    11,007.12/15,192.72 = 6,818.88/x
  3. Step 3: Cross multiply
    11,007.12x = 15,192.72 × 6,818.88
  4. Step 4: Simplify right side
    11,007.12x = 103,597,334.55
  5. Step 5: Solve for x
    x = 103,597,334.55/11,007.12
  6. Step 6: Final answer
    x = 9,411.85

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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.