Home / 9,986.01-13,783.91-6,446.49

Finding the Fourth Proportional to 9,986.01, 13,783.91 and 6,446.49

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Solution

The fourth proportional to 9,986.01, 13,783.91 and 6,446.49 is: 8,898.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986.01 : 13,783.91 = 6,446.49 : x
  2. Step 2: Convert to fraction form
    9,986.01/13,783.91 = 6,446.49/x
  3. Step 3: Cross multiply
    9,986.01x = 13,783.91 × 6,446.49
  4. Step 4: Simplify right side
    9,986.01x = 88,857,837.98
  5. Step 5: Solve for x
    x = 88,857,837.98/9,986.01
  6. Step 6: Final answer
    x = 8,898.23

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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.