Home / 18,852.87-25,999.58-12,812.12

Finding the Fourth Proportional to 18,852.87, 25,999.58 and 12,812.12

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Solution

The fourth proportional to 18,852.87, 25,999.58 and 12,812.12 is: 17,668.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,852.87 : 25,999.58 = 12,812.12 : x
  2. Step 2: Convert to fraction form
    18,852.87/25,999.58 = 12,812.12/x
  3. Step 3: Cross multiply
    18,852.87x = 25,999.58 × 12,812.12
  4. Step 4: Simplify right side
    18,852.87x = 333,109,812.62
  5. Step 5: Solve for x
    x = 333,109,812.62/18,852.87
  6. Step 6: Final answer
    x = 17,668.92

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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.