Home / 18,712.66-28,059.60-6,228.28

Finding the Fourth Proportional to 18,712.66, 28,059.60 and 6,228.28

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Solution

The fourth proportional to 18,712.66, 28,059.60 and 6,228.28 is: 9,339.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.66 : 28,059.60 = 6,228.28 : x
  2. Step 2: Convert to fraction form
    18,712.66/28,059.60 = 6,228.28/x
  3. Step 3: Cross multiply
    18,712.66x = 28,059.60 × 6,228.28
  4. Step 4: Simplify right side
    18,712.66x = 174,763,045.49
  5. Step 5: Solve for x
    x = 174,763,045.49/18,712.66
  6. Step 6: Final answer
    x = 9,339.29

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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.