Home / 13,366.07-18,450.03-7,777.07

Finding the Fourth Proportional to 13,366.07, 18,450.03 and 7,777.07

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Solution

The fourth proportional to 13,366.07, 18,450.03 and 7,777.07 is: 10,735.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.07 : 18,450.03 = 7,777.07 : x
  2. Step 2: Convert to fraction form
    13,366.07/18,450.03 = 7,777.07/x
  3. Step 3: Cross multiply
    13,366.07x = 18,450.03 × 7,777.07
  4. Step 4: Simplify right side
    13,366.07x = 143,487,043.68
  5. Step 5: Solve for x
    x = 143,487,043.68/13,366.07
  6. Step 6: Final answer
    x = 10,735.17

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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.