Home / 12,603.28-18,906.20-4,818.64

Finding the Fourth Proportional to 12,603.28, 18,906.20 and 4,818.64

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Solution

The fourth proportional to 12,603.28, 18,906.20 and 4,818.64 is: 7,228.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.28 : 18,906.20 = 4,818.64 : x
  2. Step 2: Convert to fraction form
    12,603.28/18,906.20 = 4,818.64/x
  3. Step 3: Cross multiply
    12,603.28x = 18,906.20 × 4,818.64
  4. Step 4: Simplify right side
    12,603.28x = 91,102,171.57
  5. Step 5: Solve for x
    x = 91,102,171.57/12,603.28
  6. Step 6: Final answer
    x = 7,228.45

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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.