Home / 7,817.86-11,724.63-3,434.23

Finding the Fourth Proportional to 7,817.86, 11,724.63 and 3,434.23

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Solution

The fourth proportional to 7,817.86, 11,724.63 and 3,434.23 is: 5,150.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.86 : 11,724.63 = 3,434.23 : x
  2. Step 2: Convert to fraction form
    7,817.86/11,724.63 = 3,434.23/x
  3. Step 3: Cross multiply
    7,817.86x = 11,724.63 × 3,434.23
  4. Step 4: Simplify right side
    7,817.86x = 40,265,076.08
  5. Step 5: Solve for x
    x = 40,265,076.08/7,817.86
  6. Step 6: Final answer
    x = 5,150.40

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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.