Home / 13,735.72-20,632.72-12,935.88

Finding the Fourth Proportional to 13,735.72, 20,632.72 and 12,935.88

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Solution

The fourth proportional to 13,735.72, 20,632.72 and 12,935.88 is: 19,431.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,735.72 : 20,632.72 = 12,935.88 : x
  2. Step 2: Convert to fraction form
    13,735.72/20,632.72 = 12,935.88/x
  3. Step 3: Cross multiply
    13,735.72x = 20,632.72 × 12,935.88
  4. Step 4: Simplify right side
    13,735.72x = 266,902,389.99
  5. Step 5: Solve for x
    x = 266,902,389.99/13,735.72
  6. Step 6: Final answer
    x = 19,431.26

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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.