Home / 11,555.08-15,949.96-6,776.55

Finding the Fourth Proportional to 11,555.08, 15,949.96 and 6,776.55

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Solution

The fourth proportional to 11,555.08, 15,949.96 and 6,776.55 is: 9,353.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,555.08 : 15,949.96 = 6,776.55 : x
  2. Step 2: Convert to fraction form
    11,555.08/15,949.96 = 6,776.55/x
  3. Step 3: Cross multiply
    11,555.08x = 15,949.96 × 6,776.55
  4. Step 4: Simplify right side
    11,555.08x = 108,085,684.50
  5. Step 5: Solve for x
    x = 108,085,684.50/11,555.08
  6. Step 6: Final answer
    x = 9,353.96

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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.