Home / 18,771.40-25,907.27-10,812.07

Finding the Fourth Proportional to 18,771.40, 25,907.27 and 10,812.07

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Solution

The fourth proportional to 18,771.40, 25,907.27 and 10,812.07 is: 14,922.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771.40 : 25,907.27 = 10,812.07 : x
  2. Step 2: Convert to fraction form
    18,771.40/25,907.27 = 10,812.07/x
  3. Step 3: Cross multiply
    18,771.40x = 25,907.27 × 10,812.07
  4. Step 4: Simplify right side
    18,771.40x = 280,111,216.75
  5. Step 5: Solve for x
    x = 280,111,216.75/18,771.40
  6. Step 6: Final answer
    x = 14,922.23

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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.