Home / 14,455.12-19,942.32-9,742.48

Finding the Fourth Proportional to 14,455.12, 19,942.32 and 9,742.48

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Solution

The fourth proportional to 14,455.12, 19,942.32 and 9,742.48 is: 13,440.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,455.12 : 19,942.32 = 9,742.48 : x
  2. Step 2: Convert to fraction form
    14,455.12/19,942.32 = 9,742.48/x
  3. Step 3: Cross multiply
    14,455.12x = 19,942.32 × 9,742.48
  4. Step 4: Simplify right side
    14,455.12x = 194,287,653.75
  5. Step 5: Solve for x
    x = 194,287,653.75/14,455.12
  6. Step 6: Final answer
    x = 13,440.75

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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.