Home / 8,118.27-12,178.14-2,570.16

Finding the Fourth Proportional to 8,118.27, 12,178.14 and 2,570.16

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Solution

The fourth proportional to 8,118.27, 12,178.14 and 2,570.16 is: 3,855.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.27 : 12,178.14 = 2,570.16 : x
  2. Step 2: Convert to fraction form
    8,118.27/12,178.14 = 2,570.16/x
  3. Step 3: Cross multiply
    8,118.27x = 12,178.14 × 2,570.16
  4. Step 4: Simplify right side
    8,118.27x = 31,299,768.30
  5. Step 5: Solve for x
    x = 31,299,768.30/8,118.27
  6. Step 6: Final answer
    x = 3,855.47

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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.