Home / 13,584.63-18,744.75-7,763.29

Finding the Fourth Proportional to 13,584.63, 18,744.75 and 7,763.29

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Solution

The fourth proportional to 13,584.63, 18,744.75 and 7,763.29 is: 10,712.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,584.63 : 18,744.75 = 7,763.29 : x
  2. Step 2: Convert to fraction form
    13,584.63/18,744.75 = 7,763.29/x
  3. Step 3: Cross multiply
    13,584.63x = 18,744.75 × 7,763.29
  4. Step 4: Simplify right side
    13,584.63x = 145,520,988.80
  5. Step 5: Solve for x
    x = 145,520,988.80/13,584.63
  6. Step 6: Final answer
    x = 10,712.18

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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.