Home / 7,011.64-9,674.85-4,178.66

Finding the Fourth Proportional to 7,011.64, 9,674.85 and 4,178.66

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Solution

The fourth proportional to 7,011.64, 9,674.85 and 4,178.66 is: 5,765.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,011.64 : 9,674.85 = 4,178.66 : x
  2. Step 2: Convert to fraction form
    7,011.64/9,674.85 = 4,178.66/x
  3. Step 3: Cross multiply
    7,011.64x = 9,674.85 × 4,178.66
  4. Step 4: Simplify right side
    7,011.64x = 40,427,908.70
  5. Step 5: Solve for x
    x = 40,427,908.70/7,011.64
  6. Step 6: Final answer
    x = 5,765.83

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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.