Home / 18,311.84-25,270.83-10,355.25

Finding the Fourth Proportional to 18,311.84, 25,270.83 and 10,355.25

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Solution

The fourth proportional to 18,311.84, 25,270.83 and 10,355.25 is: 14,290.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.84 : 25,270.83 = 10,355.25 : x
  2. Step 2: Convert to fraction form
    18,311.84/25,270.83 = 10,355.25/x
  3. Step 3: Cross multiply
    18,311.84x = 25,270.83 × 10,355.25
  4. Step 4: Simplify right side
    18,311.84x = 261,685,762.36
  5. Step 5: Solve for x
    x = 261,685,762.36/18,311.84
  6. Step 6: Final answer
    x = 14,290.53

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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.