Home / 8,711.35-12,021.21-4,732.45

Finding the Fourth Proportional to 8,711.35, 12,021.21 and 4,732.45

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Solution

The fourth proportional to 8,711.35, 12,021.21 and 4,732.45 is: 6,530.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.35 : 12,021.21 = 4,732.45 : x
  2. Step 2: Convert to fraction form
    8,711.35/12,021.21 = 4,732.45/x
  3. Step 3: Cross multiply
    8,711.35x = 12,021.21 × 4,732.45
  4. Step 4: Simplify right side
    8,711.35x = 56,889,790.29
  5. Step 5: Solve for x
    x = 56,889,790.29/8,711.35
  6. Step 6: Final answer
    x = 6,530.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.