Home / 13,537.09-20,395.91-12,222.32

Finding the Fourth Proportional to 13,537.09, 20,395.91 and 12,222.32

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Solution

The fourth proportional to 13,537.09, 20,395.91 and 12,222.32 is: 18,414.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.09 : 20,395.91 = 12,222.32 : x
  2. Step 2: Convert to fraction form
    13,537.09/20,395.91 = 12,222.32/x
  3. Step 3: Cross multiply
    13,537.09x = 20,395.91 × 12,222.32
  4. Step 4: Simplify right side
    13,537.09x = 249,285,328.59
  5. Step 5: Solve for x
    x = 249,285,328.59/13,537.09
  6. Step 6: Final answer
    x = 18,414.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.