Home / 7,134.24-10,718-6,286.88

Finding the Fourth Proportional to 7,134.24, 10,718 and 6,286.88

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Solution

The fourth proportional to 7,134.24, 10,718 and 6,286.88 is: 9,444.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,134.24 : 10,718 = 6,286.88 : x
  2. Step 2: Convert to fraction form
    7,134.24/10,718 = 6,286.88/x
  3. Step 3: Cross multiply
    7,134.24x = 10,718 × 6,286.88
  4. Step 4: Simplify right side
    7,134.24x = 67,382,779.84
  5. Step 5: Solve for x
    x = 67,382,779.84/7,134.24
  6. Step 6: Final answer
    x = 9,444.98

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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.