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Finding the Fourth Proportional to 11,339.71, 17,005.78 and 4,764.67

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Solution

The fourth proportional to 11,339.71, 17,005.78 and 4,764.67 is: 7,145.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.71 : 17,005.78 = 4,764.67 : x
  2. Step 2: Convert to fraction form
    11,339.71/17,005.78 = 4,764.67/x
  3. Step 3: Cross multiply
    11,339.71x = 17,005.78 × 4,764.67
  4. Step 4: Simplify right side
    11,339.71x = 81,026,929.79
  5. Step 5: Solve for x
    x = 81,026,929.79/11,339.71
  6. Step 6: Final answer
    x = 7,145.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.