Home / 13,370.49-18,447.84-7,703.94

Finding the Fourth Proportional to 13,370.49, 18,447.84 and 7,703.94

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Solution

The fourth proportional to 13,370.49, 18,447.84 and 7,703.94 is: 10,629.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.49 : 18,447.84 = 7,703.94 : x
  2. Step 2: Convert to fraction form
    13,370.49/18,447.84 = 7,703.94/x
  3. Step 3: Cross multiply
    13,370.49x = 18,447.84 × 7,703.94
  4. Step 4: Simplify right side
    13,370.49x = 142,121,052.49
  5. Step 5: Solve for x
    x = 142,121,052.49/13,370.49
  6. Step 6: Final answer
    x = 10,629.46

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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.