Home / 7,814.28-11,717.64-2,616.48

Finding the Fourth Proportional to 7,814.28, 11,717.64 and 2,616.48

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Solution

The fourth proportional to 7,814.28, 11,717.64 and 2,616.48 is: 3,923.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,814.28 : 11,717.64 = 2,616.48 : x
  2. Step 2: Convert to fraction form
    7,814.28/11,717.64 = 2,616.48/x
  3. Step 3: Cross multiply
    7,814.28x = 11,717.64 × 2,616.48
  4. Step 4: Simplify right side
    7,814.28x = 30,658,970.71
  5. Step 5: Solve for x
    x = 30,658,970.71/7,814.28
  6. Step 6: Final answer
    x = 3,923.45

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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.