Home / 12,836.70-19,254.78-5,911.20

Finding the Fourth Proportional to 12,836.70, 19,254.78 and 5,911.20

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Solution

The fourth proportional to 12,836.70, 19,254.78 and 5,911.20 is: 8,866.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,836.70 : 19,254.78 = 5,911.20 : x
  2. Step 2: Convert to fraction form
    12,836.70/19,254.78 = 5,911.20/x
  3. Step 3: Cross multiply
    12,836.70x = 19,254.78 × 5,911.20
  4. Step 4: Simplify right side
    12,836.70x = 113,818,855.54
  5. Step 5: Solve for x
    x = 113,818,855.54/12,836.70
  6. Step 6: Final answer
    x = 8,866.68

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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.