Home / 8,711.32-13,076.21-5,426.74

Finding the Fourth Proportional to 8,711.32, 13,076.21 and 5,426.74

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Solution

The fourth proportional to 8,711.32, 13,076.21 and 5,426.74 is: 8,145.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.32 : 13,076.21 = 5,426.74 : x
  2. Step 2: Convert to fraction form
    8,711.32/13,076.21 = 5,426.74/x
  3. Step 3: Cross multiply
    8,711.32x = 13,076.21 × 5,426.74
  4. Step 4: Simplify right side
    8,711.32x = 70,961,191.86
  5. Step 5: Solve for x
    x = 70,961,191.86/8,711.32
  6. Step 6: Final answer
    x = 8,145.86

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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.