Home / 12,788.96-19,157.92-10,160.91

Finding the Fourth Proportional to 12,788.96, 19,157.92 and 10,160.91

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Solution

The fourth proportional to 12,788.96, 19,157.92 and 10,160.91 is: 15,221.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.96 : 19,157.92 = 10,160.91 : x
  2. Step 2: Convert to fraction form
    12,788.96/19,157.92 = 10,160.91/x
  3. Step 3: Cross multiply
    12,788.96x = 19,157.92 × 10,160.91
  4. Step 4: Simplify right side
    12,788.96x = 194,661,875.50
  5. Step 5: Solve for x
    x = 194,661,875.50/12,788.96
  6. Step 6: Final answer
    x = 15,221.09

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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.