Home / 18,965.75-28,457.73-10,199.52

Finding the Fourth Proportional to 18,965.75, 28,457.73 and 10,199.52

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Solution

The fourth proportional to 18,965.75, 28,457.73 and 10,199.52 is: 15,304.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,965.75 : 28,457.73 = 10,199.52 : x
  2. Step 2: Convert to fraction form
    18,965.75/28,457.73 = 10,199.52/x
  3. Step 3: Cross multiply
    18,965.75x = 28,457.73 × 10,199.52
  4. Step 4: Simplify right side
    18,965.75x = 290,255,186.29
  5. Step 5: Solve for x
    x = 290,255,186.29/18,965.75
  6. Step 6: Final answer
    x = 15,304.18

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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.