Home / 8,541.91-12,817.74-6,821.47

Finding the Fourth Proportional to 8,541.91, 12,817.74 and 6,821.47

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Solution

The fourth proportional to 8,541.91, 12,817.74 and 6,821.47 is: 10,236.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,541.91 : 12,817.74 = 6,821.47 : x
  2. Step 2: Convert to fraction form
    8,541.91/12,817.74 = 6,821.47/x
  3. Step 3: Cross multiply
    8,541.91x = 12,817.74 × 6,821.47
  4. Step 4: Simplify right side
    8,541.91x = 87,435,828.88
  5. Step 5: Solve for x
    x = 87,435,828.88/8,541.91
  6. Step 6: Final answer
    x = 10,236.10

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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.