Home / 12,355.36-18,540.32-4,569.60

Finding the Fourth Proportional to 12,355.36, 18,540.32 and 4,569.60

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Solution

The fourth proportional to 12,355.36, 18,540.32 and 4,569.60 is: 6,857.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.36 : 18,540.32 = 4,569.60 : x
  2. Step 2: Convert to fraction form
    12,355.36/18,540.32 = 4,569.60/x
  3. Step 3: Cross multiply
    12,355.36x = 18,540.32 × 4,569.60
  4. Step 4: Simplify right side
    12,355.36x = 84,721,846.27
  5. Step 5: Solve for x
    x = 84,721,846.27/12,355.36
  6. Step 6: Final answer
    x = 6,857.09

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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.