Home / 9,968.32-13,748.64-6,429.44

Finding the Fourth Proportional to 9,968.32, 13,748.64 and 6,429.44

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Solution

The fourth proportional to 9,968.32, 13,748.64 and 6,429.44 is: 8,867.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,968.32 : 13,748.64 = 6,429.44 : x
  2. Step 2: Convert to fraction form
    9,968.32/13,748.64 = 6,429.44/x
  3. Step 3: Cross multiply
    9,968.32x = 13,748.64 × 6,429.44
  4. Step 4: Simplify right side
    9,968.32x = 88,396,055.96
  5. Step 5: Solve for x
    x = 88,396,055.96/9,968.32
  6. Step 6: Final answer
    x = 8,867.70

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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.