Home / 12,603.45-18,904.60-4,705.35

Finding the Fourth Proportional to 12,603.45, 18,904.60 and 4,705.35

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Solution

The fourth proportional to 12,603.45, 18,904.60 and 4,705.35 is: 7,057.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.45 : 18,904.60 = 4,705.35 : x
  2. Step 2: Convert to fraction form
    12,603.45/18,904.60 = 4,705.35/x
  3. Step 3: Cross multiply
    12,603.45x = 18,904.60 × 4,705.35
  4. Step 4: Simplify right side
    12,603.45x = 88,952,759.61
  5. Step 5: Solve for x
    x = 88,952,759.61/12,603.45
  6. Step 6: Final answer
    x = 7,057.81

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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.