Home / 8,325.40-12,488.24-2,778.77

Finding the Fourth Proportional to 8,325.40, 12,488.24 and 2,778.77

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Solution

The fourth proportional to 8,325.40, 12,488.24 and 2,778.77 is: 4,168.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,325.40 : 12,488.24 = 2,778.77 : x
  2. Step 2: Convert to fraction form
    8,325.40/12,488.24 = 2,778.77/x
  3. Step 3: Cross multiply
    8,325.40x = 12,488.24 × 2,778.77
  4. Step 4: Simplify right side
    8,325.40x = 34,701,969.20
  5. Step 5: Solve for x
    x = 34,701,969.20/8,325.40
  6. Step 6: Final answer
    x = 4,168.20

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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.