Home / 13,366.85-18,444.62-7,703.43

Finding the Fourth Proportional to 13,366.85, 18,444.62 and 7,703.43

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Solution

The fourth proportional to 13,366.85, 18,444.62 and 7,703.43 is: 10,629.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.85 : 18,444.62 = 7,703.43 : x
  2. Step 2: Convert to fraction form
    13,366.85/18,444.62 = 7,703.43/x
  3. Step 3: Cross multiply
    13,366.85x = 18,444.62 × 7,703.43
  4. Step 4: Simplify right side
    13,366.85x = 142,086,839.05
  5. Step 5: Solve for x
    x = 142,086,839.05/13,366.85
  6. Step 6: Final answer
    x = 10,629.80

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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.