Home / 9,928.28-13,698.18-6,392.60

Finding the Fourth Proportional to 9,928.28, 13,698.18 and 6,392.60

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Solution

The fourth proportional to 9,928.28, 13,698.18 and 6,392.60 is: 8,819.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928.28 : 13,698.18 = 6,392.60 : x
  2. Step 2: Convert to fraction form
    9,928.28/13,698.18 = 6,392.60/x
  3. Step 3: Cross multiply
    9,928.28x = 13,698.18 × 6,392.60
  4. Step 4: Simplify right side
    9,928.28x = 87,566,985.47
  5. Step 5: Solve for x
    x = 87,566,985.47/9,928.28
  6. Step 6: Final answer
    x = 8,819.96

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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.