Home / 11,080.80-15,291.28-6,364.96

Finding the Fourth Proportional to 11,080.80, 15,291.28 and 6,364.96

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Solution

The fourth proportional to 11,080.80, 15,291.28 and 6,364.96 is: 8,783.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,080.80 : 15,291.28 = 6,364.96 : x
  2. Step 2: Convert to fraction form
    11,080.80/15,291.28 = 6,364.96/x
  3. Step 3: Cross multiply
    11,080.80x = 15,291.28 × 6,364.96
  4. Step 4: Simplify right side
    11,080.80x = 97,328,385.55
  5. Step 5: Solve for x
    x = 97,328,385.55/11,080.80
  6. Step 6: Final answer
    x = 8,783.52

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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.