Home / 12,336.60-18,469.25-7,255.47

Finding the Fourth Proportional to 12,336.60, 18,469.25 and 7,255.47

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Solution

The fourth proportional to 12,336.60, 18,469.25 and 7,255.47 is: 10,862.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,336.60 : 18,469.25 = 7,255.47 : x
  2. Step 2: Convert to fraction form
    12,336.60/18,469.25 = 7,255.47/x
  3. Step 3: Cross multiply
    12,336.60x = 18,469.25 × 7,255.47
  4. Step 4: Simplify right side
    12,336.60x = 134,003,038.18
  5. Step 5: Solve for x
    x = 134,003,038.18/12,336.60
  6. Step 6: Final answer
    x = 10,862.24

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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.