Home / 12,513.21-18,769.80-7,584.26

Finding the Fourth Proportional to 12,513.21, 18,769.80 and 7,584.26

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Solution

The fourth proportional to 12,513.21, 18,769.80 and 7,584.26 is: 11,376.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513.21 : 18,769.80 = 7,584.26 : x
  2. Step 2: Convert to fraction form
    12,513.21/18,769.80 = 7,584.26/x
  3. Step 3: Cross multiply
    12,513.21x = 18,769.80 × 7,584.26
  4. Step 4: Simplify right side
    12,513.21x = 142,354,949.50
  5. Step 5: Solve for x
    x = 142,354,949.50/12,513.21
  6. Step 6: Final answer
    x = 11,376.37

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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.