Home / 8,626.81-12,942.95-3,080.03

Finding the Fourth Proportional to 8,626.81, 12,942.95 and 3,080.03

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Solution

The fourth proportional to 8,626.81, 12,942.95 and 3,080.03 is: 4,621.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.81 : 12,942.95 = 3,080.03 : x
  2. Step 2: Convert to fraction form
    8,626.81/12,942.95 = 3,080.03/x
  3. Step 3: Cross multiply
    8,626.81x = 12,942.95 × 3,080.03
  4. Step 4: Simplify right side
    8,626.81x = 39,864,642.71
  5. Step 5: Solve for x
    x = 39,864,642.71/8,626.81
  6. Step 6: Final answer
    x = 4,621.02

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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.