Home / 13,653.42-18,840.26-7,684.99

Finding the Fourth Proportional to 13,653.42, 18,840.26 and 7,684.99

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Solution

The fourth proportional to 13,653.42, 18,840.26 and 7,684.99 is: 10,604.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.42 : 18,840.26 = 7,684.99 : x
  2. Step 2: Convert to fraction form
    13,653.42/18,840.26 = 7,684.99/x
  3. Step 3: Cross multiply
    13,653.42x = 18,840.26 × 7,684.99
  4. Step 4: Simplify right side
    13,653.42x = 144,787,115.50
  5. Step 5: Solve for x
    x = 144,787,115.50/13,653.42
  6. Step 6: Final answer
    x = 10,604.46

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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.