Home / 9,383.20-12,946.80-5,657.12

Finding the Fourth Proportional to 9,383.20, 12,946.80 and 5,657.12

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Solution

The fourth proportional to 9,383.20, 12,946.80 and 5,657.12 is: 7,805.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,383.20 : 12,946.80 = 5,657.12 : x
  2. Step 2: Convert to fraction form
    9,383.20/12,946.80 = 5,657.12/x
  3. Step 3: Cross multiply
    9,383.20x = 12,946.80 × 5,657.12
  4. Step 4: Simplify right side
    9,383.20x = 73,241,601.22
  5. Step 5: Solve for x
    x = 73,241,601.22/9,383.20
  6. Step 6: Final answer
    x = 7,805.61

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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.