Home / 8,815.59-12,165.74-4,986.91

Finding the Fourth Proportional to 8,815.59, 12,165.74 and 4,986.91

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Solution

The fourth proportional to 8,815.59, 12,165.74 and 4,986.91 is: 6,882.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.59 : 12,165.74 = 4,986.91 : x
  2. Step 2: Convert to fraction form
    8,815.59/12,165.74 = 4,986.91/x
  3. Step 3: Cross multiply
    8,815.59x = 12,165.74 × 4,986.91
  4. Step 4: Simplify right side
    8,815.59x = 60,669,450.46
  5. Step 5: Solve for x
    x = 60,669,450.46/8,815.59
  6. Step 6: Final answer
    x = 6,882.06

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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.