Home / 12,788.77-19,174.96-8,828.94

Finding the Fourth Proportional to 12,788.77, 19,174.96 and 8,828.94

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Solution

The fourth proportional to 12,788.77, 19,174.96 and 8,828.94 is: 13,237.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.77 : 19,174.96 = 8,828.94 : x
  2. Step 2: Convert to fraction form
    12,788.77/19,174.96 = 8,828.94/x
  3. Step 3: Cross multiply
    12,788.77x = 19,174.96 × 8,828.94
  4. Step 4: Simplify right side
    12,788.77x = 169,294,571.34
  5. Step 5: Solve for x
    x = 169,294,571.34/12,788.77
  6. Step 6: Final answer
    x = 13,237.75

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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.