Home / 12,788.08-19,156.60-10,160.04

Finding the Fourth Proportional to 12,788.08, 19,156.60 and 10,160.04

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Solution

The fourth proportional to 12,788.08, 19,156.60 and 10,160.04 is: 15,219.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.08 : 19,156.60 = 10,160.04 : x
  2. Step 2: Convert to fraction form
    12,788.08/19,156.60 = 10,160.04/x
  3. Step 3: Cross multiply
    12,788.08x = 19,156.60 × 10,160.04
  4. Step 4: Simplify right side
    12,788.08x = 194,631,822.26
  5. Step 5: Solve for x
    x = 194,631,822.26/12,788.08
  6. Step 6: Final answer
    x = 15,219.78

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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.