Home / 7,827.12-11,729.69-4,318.76

Finding the Fourth Proportional to 7,827.12, 11,729.69 and 4,318.76

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Solution

The fourth proportional to 7,827.12, 11,729.69 and 4,318.76 is: 6,472.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,827.12 : 11,729.69 = 4,318.76 : x
  2. Step 2: Convert to fraction form
    7,827.12/11,729.69 = 4,318.76/x
  3. Step 3: Cross multiply
    7,827.12x = 11,729.69 × 4,318.76
  4. Step 4: Simplify right side
    7,827.12x = 50,657,635.74
  5. Step 5: Solve for x
    x = 50,657,635.74/7,827.12
  6. Step 6: Final answer
    x = 6,472.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.