Home / 11,178.46-15,425.88-6,142.30

Finding the Fourth Proportional to 11,178.46, 15,425.88 and 6,142.30

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Solution

The fourth proportional to 11,178.46, 15,425.88 and 6,142.30 is: 8,476.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.46 : 15,425.88 = 6,142.30 : x
  2. Step 2: Convert to fraction form
    11,178.46/15,425.88 = 6,142.30/x
  3. Step 3: Cross multiply
    11,178.46x = 15,425.88 × 6,142.30
  4. Step 4: Simplify right side
    11,178.46x = 94,750,382.72
  5. Step 5: Solve for x
    x = 94,750,382.72/11,178.46
  6. Step 6: Final answer
    x = 8,476.16

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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.