Home / 14,705.78-20,302.42-9,684.58

Finding the Fourth Proportional to 14,705.78, 20,302.42 and 9,684.58

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Solution

The fourth proportional to 14,705.78, 20,302.42 and 9,684.58 is: 13,370.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,705.78 : 20,302.42 = 9,684.58 : x
  2. Step 2: Convert to fraction form
    14,705.78/20,302.42 = 9,684.58/x
  3. Step 3: Cross multiply
    14,705.78x = 20,302.42 × 9,684.58
  4. Step 4: Simplify right side
    14,705.78x = 196,620,410.68
  5. Step 5: Solve for x
    x = 196,620,410.68/14,705.78
  6. Step 6: Final answer
    x = 13,370.28

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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.