Home / 8,178.47-12,266.34-2,913.27

Finding the Fourth Proportional to 8,178.47, 12,266.34 and 2,913.27

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Solution

The fourth proportional to 8,178.47, 12,266.34 and 2,913.27 is: 4,369.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.47 : 12,266.34 = 2,913.27 : x
  2. Step 2: Convert to fraction form
    8,178.47/12,266.34 = 2,913.27/x
  3. Step 3: Cross multiply
    8,178.47x = 12,266.34 × 2,913.27
  4. Step 4: Simplify right side
    8,178.47x = 35,735,103.41
  5. Step 5: Solve for x
    x = 35,735,103.41/8,178.47
  6. Step 6: Final answer
    x = 4,369.41

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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.