Home / 11,819.79-17,751.51-7,926.93

Finding the Fourth Proportional to 11,819.79, 17,751.51 and 7,926.93

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Solution

The fourth proportional to 11,819.79, 17,751.51 and 7,926.93 is: 11,905.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.79 : 17,751.51 = 7,926.93 : x
  2. Step 2: Convert to fraction form
    11,819.79/17,751.51 = 7,926.93/x
  3. Step 3: Cross multiply
    11,819.79x = 17,751.51 × 7,926.93
  4. Step 4: Simplify right side
    11,819.79x = 140,714,977.16
  5. Step 5: Solve for x
    x = 140,714,977.16/11,819.79
  6. Step 6: Final answer
    x = 11,905.03

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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.