Home / 11,178.27-15,425.64-6,142.50

Finding the Fourth Proportional to 11,178.27, 15,425.64 and 6,142.50

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Solution

The fourth proportional to 11,178.27, 15,425.64 and 6,142.50 is: 8,476.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.27 : 15,425.64 = 6,142.50 : x
  2. Step 2: Convert to fraction form
    11,178.27/15,425.64 = 6,142.50/x
  3. Step 3: Cross multiply
    11,178.27x = 15,425.64 × 6,142.50
  4. Step 4: Simplify right side
    11,178.27x = 94,751,993.70
  5. Step 5: Solve for x
    x = 94,751,993.70/11,178.27
  6. Step 6: Final answer
    x = 8,476.45

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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.