Home / 9,861.40-13,601.04-6,324.88

Finding the Fourth Proportional to 9,861.40, 13,601.04 and 6,324.88

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Solution

The fourth proportional to 9,861.40, 13,601.04 and 6,324.88 is: 8,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,861.40 : 13,601.04 = 6,324.88 : x
  2. Step 2: Convert to fraction form
    9,861.40/13,601.04 = 6,324.88/x
  3. Step 3: Cross multiply
    9,861.40x = 13,601.04 × 6,324.88
  4. Step 4: Simplify right side
    9,861.40x = 86,024,945.88
  5. Step 5: Solve for x
    x = 86,024,945.88/9,861.40
  6. Step 6: Final answer
    x = 8,723.40

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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.