Home / 7,474.21-11,215.67-3,314.68

Finding the Fourth Proportional to 7,474.21, 11,215.67 and 3,314.68

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Solution

The fourth proportional to 7,474.21, 11,215.67 and 3,314.68 is: 4,973.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.21 : 11,215.67 = 3,314.68 : x
  2. Step 2: Convert to fraction form
    7,474.21/11,215.67 = 3,314.68/x
  3. Step 3: Cross multiply
    7,474.21x = 11,215.67 × 3,314.68
  4. Step 4: Simplify right side
    7,474.21x = 37,176,312.42
  5. Step 5: Solve for x
    x = 37,176,312.42/7,474.21
  6. Step 6: Final answer
    x = 4,973.95

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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.