Home / 12,328.20-18,494.70-5,308.20

Finding the Fourth Proportional to 12,328.20, 18,494.70 and 5,308.20

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Solution

The fourth proportional to 12,328.20, 18,494.70 and 5,308.20 is: 7,963.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328.20 : 18,494.70 = 5,308.20 : x
  2. Step 2: Convert to fraction form
    12,328.20/18,494.70 = 5,308.20/x
  3. Step 3: Cross multiply
    12,328.20x = 18,494.70 × 5,308.20
  4. Step 4: Simplify right side
    12,328.20x = 98,173,566.54
  5. Step 5: Solve for x
    x = 98,173,566.54/12,328.20
  6. Step 6: Final answer
    x = 7,963.33

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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.