Home / 19,635.36-29,391.08-12,605.99

Finding the Fourth Proportional to 19,635.36, 29,391.08 and 12,605.99

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Solution

The fourth proportional to 19,635.36, 29,391.08 and 12,605.99 is: 18,869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,635.36 : 29,391.08 = 12,605.99 : x
  2. Step 2: Convert to fraction form
    19,635.36/29,391.08 = 12,605.99/x
  3. Step 3: Cross multiply
    19,635.36x = 29,391.08 × 12,605.99
  4. Step 4: Simplify right side
    19,635.36x = 370,503,450.58
  5. Step 5: Solve for x
    x = 370,503,450.58/19,635.36
  6. Step 6: Final answer
    x = 18,869.20

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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.