Home / 8,103.06-12,151.44-3,172.23

Finding the Fourth Proportional to 8,103.06, 12,151.44 and 3,172.23

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Solution

The fourth proportional to 8,103.06, 12,151.44 and 3,172.23 is: 4,757.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,103.06 : 12,151.44 = 3,172.23 : x
  2. Step 2: Convert to fraction form
    8,103.06/12,151.44 = 3,172.23/x
  3. Step 3: Cross multiply
    8,103.06x = 12,151.44 × 3,172.23
  4. Step 4: Simplify right side
    8,103.06x = 38,547,162.51
  5. Step 5: Solve for x
    x = 38,547,162.51/8,103.06
  6. Step 6: Final answer
    x = 4,757.11

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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.