Home / 13,366.63-18,450.81-7,777.63

Finding the Fourth Proportional to 13,366.63, 18,450.81 and 7,777.63

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Solution

The fourth proportional to 13,366.63, 18,450.81 and 7,777.63 is: 10,735.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.63 : 18,450.81 = 7,777.63 : x
  2. Step 2: Convert to fraction form
    13,366.63/18,450.81 = 7,777.63/x
  3. Step 3: Cross multiply
    13,366.63x = 18,450.81 × 7,777.63
  4. Step 4: Simplify right side
    13,366.63x = 143,503,442.24
  5. Step 5: Solve for x
    x = 143,503,442.24/13,366.63
  6. Step 6: Final answer
    x = 10,735.95

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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.