Home / 12,491.14-18,738.54-4,701.76

Finding the Fourth Proportional to 12,491.14, 18,738.54 and 4,701.76

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Solution

The fourth proportional to 12,491.14, 18,738.54 and 4,701.76 is: 7,053.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491.14 : 18,738.54 = 4,701.76 : x
  2. Step 2: Convert to fraction form
    12,491.14/18,738.54 = 4,701.76/x
  3. Step 3: Cross multiply
    12,491.14x = 18,738.54 × 4,701.76
  4. Step 4: Simplify right side
    12,491.14x = 88,104,117.83
  5. Step 5: Solve for x
    x = 88,104,117.83/12,491.14
  6. Step 6: Final answer
    x = 7,053.33

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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.