Home / 13,623.08-20,431.38-3,762.16

Finding the Fourth Proportional to 13,623.08, 20,431.38 and 3,762.16

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Solution

The fourth proportional to 13,623.08, 20,431.38 and 3,762.16 is: 5,642.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.08 : 20,431.38 = 3,762.16 : x
  2. Step 2: Convert to fraction form
    13,623.08/20,431.38 = 3,762.16/x
  3. Step 3: Cross multiply
    13,623.08x = 20,431.38 × 3,762.16
  4. Step 4: Simplify right side
    13,623.08x = 76,866,120.58
  5. Step 5: Solve for x
    x = 76,866,120.58/13,623.08
  6. Step 6: Final answer
    x = 5,642.35

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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.