Home / 9,928.08-13,698.12-6,395.88

Finding the Fourth Proportional to 9,928.08, 13,698.12 and 6,395.88

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Solution

The fourth proportional to 9,928.08, 13,698.12 and 6,395.88 is: 8,824.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928.08 : 13,698.12 = 6,395.88 : x
  2. Step 2: Convert to fraction form
    9,928.08/13,698.12 = 6,395.88/x
  3. Step 3: Cross multiply
    9,928.08x = 13,698.12 × 6,395.88
  4. Step 4: Simplify right side
    9,928.08x = 87,611,531.75
  5. Step 5: Solve for x
    x = 87,611,531.75/9,928.08
  6. Step 6: Final answer
    x = 8,824.62

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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.