Home / 8,701.10-12,007.38-4,722.20

Finding the Fourth Proportional to 8,701.10, 12,007.38 and 4,722.20

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Solution

The fourth proportional to 8,701.10, 12,007.38 and 4,722.20 is: 6,516.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.10 : 12,007.38 = 4,722.20 : x
  2. Step 2: Convert to fraction form
    8,701.10/12,007.38 = 4,722.20/x
  3. Step 3: Cross multiply
    8,701.10x = 12,007.38 × 4,722.20
  4. Step 4: Simplify right side
    8,701.10x = 56,701,249.84
  5. Step 5: Solve for x
    x = 56,701,249.84/8,701.10
  6. Step 6: Final answer
    x = 6,516.56

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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.