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Finding the Fourth Proportional to 12,974.76, 19,461.87 and 8,804.34

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Solution

The fourth proportional to 12,974.76, 19,461.87 and 8,804.34 is: 13,206.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,974.76 : 19,461.87 = 8,804.34 : x
  2. Step 2: Convert to fraction form
    12,974.76/19,461.87 = 8,804.34/x
  3. Step 3: Cross multiply
    12,974.76x = 19,461.87 × 8,804.34
  4. Step 4: Simplify right side
    12,974.76x = 171,348,920.52
  5. Step 5: Solve for x
    x = 171,348,920.52/12,974.76
  6. Step 6: Final answer
    x = 13,206.33

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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.