Home / 12,740.79-19,105.07-5,343.27

Finding the Fourth Proportional to 12,740.79, 19,105.07 and 5,343.27

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Solution

The fourth proportional to 12,740.79, 19,105.07 and 5,343.27 is: 8,012.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.79 : 19,105.07 = 5,343.27 : x
  2. Step 2: Convert to fraction form
    12,740.79/19,105.07 = 5,343.27/x
  3. Step 3: Cross multiply
    12,740.79x = 19,105.07 × 5,343.27
  4. Step 4: Simplify right side
    12,740.79x = 102,083,449.02
  5. Step 5: Solve for x
    x = 102,083,449.02/12,740.79
  6. Step 6: Final answer
    x = 8,012.33

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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.