Home / 9,321.01-13,981.50-6,390.43

Finding the Fourth Proportional to 9,321.01, 13,981.50 and 6,390.43

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Solution

The fourth proportional to 9,321.01, 13,981.50 and 6,390.43 is: 9,585.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321.01 : 13,981.50 = 6,390.43 : x
  2. Step 2: Convert to fraction form
    9,321.01/13,981.50 = 6,390.43/x
  3. Step 3: Cross multiply
    9,321.01x = 13,981.50 × 6,390.43
  4. Step 4: Simplify right side
    9,321.01x = 89,347,797.05
  5. Step 5: Solve for x
    x = 89,347,797.05/9,321.01
  6. Step 6: Final answer
    x = 9,585.63

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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.