Home / 11,278.86-15,566.49-6,497.88

Finding the Fourth Proportional to 11,278.86, 15,566.49 and 6,497.88

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Solution

The fourth proportional to 11,278.86, 15,566.49 and 6,497.88 is: 8,968.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.86 : 15,566.49 = 6,497.88 : x
  2. Step 2: Convert to fraction form
    11,278.86/15,566.49 = 6,497.88/x
  3. Step 3: Cross multiply
    11,278.86x = 15,566.49 × 6,497.88
  4. Step 4: Simplify right side
    11,278.86x = 101,149,184.04
  5. Step 5: Solve for x
    x = 101,149,184.04/11,278.86
  6. Step 6: Final answer
    x = 8,968.03

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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.