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Finding the Fourth Proportional to 9,964.72, 13,750.68 and 5,986

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Solution

The fourth proportional to 9,964.72, 13,750.68 and 5,986 is: 8,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,964.72 : 13,750.68 = 5,986 : x
  2. Step 2: Convert to fraction form
    9,964.72/13,750.68 = 5,986/x
  3. Step 3: Cross multiply
    9,964.72x = 13,750.68 × 5,986
  4. Step 4: Simplify right side
    9,964.72x = 82,311,570.48
  5. Step 5: Solve for x
    x = 82,311,570.48/9,964.72
  6. Step 6: Final answer
    x = 8,260.30

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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.