Home / 13,366.88-18,450.90-7,703.89

Finding the Fourth Proportional to 13,366.88, 18,450.90 and 7,703.89

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Solution

The fourth proportional to 13,366.88, 18,450.90 and 7,703.89 is: 10,634.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.88 : 18,450.90 = 7,703.89 : x
  2. Step 2: Convert to fraction form
    13,366.88/18,450.90 = 7,703.89/x
  3. Step 3: Cross multiply
    13,366.88x = 18,450.90 × 7,703.89
  4. Step 4: Simplify right side
    13,366.88x = 142,143,657.87
  5. Step 5: Solve for x
    x = 142,143,657.87/13,366.88
  6. Step 6: Final answer
    x = 10,634.02

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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.