Home / 7,943.48-11,919.42-5,770.16

Finding the Fourth Proportional to 7,943.48, 11,919.42 and 5,770.16

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Solution

The fourth proportional to 7,943.48, 11,919.42 and 5,770.16 is: 8,658.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.48 : 11,919.42 = 5,770.16 : x
  2. Step 2: Convert to fraction form
    7,943.48/11,919.42 = 5,770.16/x
  3. Step 3: Cross multiply
    7,943.48x = 11,919.42 × 5,770.16
  4. Step 4: Simplify right side
    7,943.48x = 68,776,960.51
  5. Step 5: Solve for x
    x = 68,776,960.51/7,943.48
  6. Step 6: Final answer
    x = 8,658.29

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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.