Home / 13,589.63-18,751.83-7,620.93

Finding the Fourth Proportional to 13,589.63, 18,751.83 and 7,620.93

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Solution

The fourth proportional to 13,589.63, 18,751.83 and 7,620.93 is: 10,515.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.63 : 18,751.83 = 7,620.93 : x
  2. Step 2: Convert to fraction form
    13,589.63/18,751.83 = 7,620.93/x
  3. Step 3: Cross multiply
    13,589.63x = 18,751.83 × 7,620.93
  4. Step 4: Simplify right side
    13,589.63x = 142,906,383.80
  5. Step 5: Solve for x
    x = 142,906,383.80/13,589.63
  6. Step 6: Final answer
    x = 10,515.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.