Home / 9,336.60-12,885.88-6,149.39

Finding the Fourth Proportional to 9,336.60, 12,885.88 and 6,149.39

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Solution

The fourth proportional to 9,336.60, 12,885.88 and 6,149.39 is: 8,487.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,336.60 : 12,885.88 = 6,149.39 : x
  2. Step 2: Convert to fraction form
    9,336.60/12,885.88 = 6,149.39/x
  3. Step 3: Cross multiply
    9,336.60x = 12,885.88 × 6,149.39
  4. Step 4: Simplify right side
    9,336.60x = 79,240,237.18
  5. Step 5: Solve for x
    x = 79,240,237.18/9,336.60
  6. Step 6: Final answer
    x = 8,487.05

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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.