Home / 11,134.98-15,347.61-8,889.66

Finding the Fourth Proportional to 11,134.98, 15,347.61 and 8,889.66

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Solution

The fourth proportional to 11,134.98, 15,347.61 and 8,889.66 is: 12,252.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,134.98 : 15,347.61 = 8,889.66 : x
  2. Step 2: Convert to fraction form
    11,134.98/15,347.61 = 8,889.66/x
  3. Step 3: Cross multiply
    11,134.98x = 15,347.61 × 8,889.66
  4. Step 4: Simplify right side
    11,134.98x = 136,435,034.71
  5. Step 5: Solve for x
    x = 136,435,034.71/11,134.98
  6. Step 6: Final answer
    x = 12,252.83

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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.