Home / 8,974.09-13,457.04-3,129.33

Finding the Fourth Proportional to 8,974.09, 13,457.04 and 3,129.33

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Solution

The fourth proportional to 8,974.09, 13,457.04 and 3,129.33 is: 4,692.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.09 : 13,457.04 = 3,129.33 : x
  2. Step 2: Convert to fraction form
    8,974.09/13,457.04 = 3,129.33/x
  3. Step 3: Cross multiply
    8,974.09x = 13,457.04 × 3,129.33
  4. Step 4: Simplify right side
    8,974.09x = 42,111,557.71
  5. Step 5: Solve for x
    x = 42,111,557.71/8,974.09
  6. Step 6: Final answer
    x = 4,692.57

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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.