Home / 8,142.08-12,205.56-2,946.80

Finding the Fourth Proportional to 8,142.08, 12,205.56 and 2,946.80

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Solution

The fourth proportional to 8,142.08, 12,205.56 and 2,946.80 is: 4,417.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.08 : 12,205.56 = 2,946.80 : x
  2. Step 2: Convert to fraction form
    8,142.08/12,205.56 = 2,946.80/x
  3. Step 3: Cross multiply
    8,142.08x = 12,205.56 × 2,946.80
  4. Step 4: Simplify right side
    8,142.08x = 35,967,344.21
  5. Step 5: Solve for x
    x = 35,967,344.21/8,142.08
  6. Step 6: Final answer
    x = 4,417.46

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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.