Home / 8,178.45-11,261.27-6,164.79

Finding the Fourth Proportional to 8,178.45, 11,261.27 and 6,164.79

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Solution

The fourth proportional to 8,178.45, 11,261.27 and 6,164.79 is: 8,488.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.45 : 11,261.27 = 6,164.79 : x
  2. Step 2: Convert to fraction form
    8,178.45/11,261.27 = 6,164.79/x
  3. Step 3: Cross multiply
    8,178.45x = 11,261.27 × 6,164.79
  4. Step 4: Simplify right side
    8,178.45x = 69,423,364.68
  5. Step 5: Solve for x
    x = 69,423,364.68/8,178.45
  6. Step 6: Final answer
    x = 8,488.57

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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.