Home / 11,479.08-15,839.03-6,442.61

Finding the Fourth Proportional to 11,479.08, 15,839.03 and 6,442.61

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Solution

The fourth proportional to 11,479.08, 15,839.03 and 6,442.61 is: 8,889.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,479.08 : 15,839.03 = 6,442.61 : x
  2. Step 2: Convert to fraction form
    11,479.08/15,839.03 = 6,442.61/x
  3. Step 3: Cross multiply
    11,479.08x = 15,839.03 × 6,442.61
  4. Step 4: Simplify right side
    11,479.08x = 102,044,748.77
  5. Step 5: Solve for x
    x = 102,044,748.77/11,479.08
  6. Step 6: Final answer
    x = 8,889.63

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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.