Home / 14,007.25-19,330.41-7,720.03

Finding the Fourth Proportional to 14,007.25, 19,330.41 and 7,720.03

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Solution

The fourth proportional to 14,007.25, 19,330.41 and 7,720.03 is: 10,653.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.25 : 19,330.41 = 7,720.03 : x
  2. Step 2: Convert to fraction form
    14,007.25/19,330.41 = 7,720.03/x
  3. Step 3: Cross multiply
    14,007.25x = 19,330.41 × 7,720.03
  4. Step 4: Simplify right side
    14,007.25x = 149,231,345.11
  5. Step 5: Solve for x
    x = 149,231,345.11/14,007.25
  6. Step 6: Final answer
    x = 10,653.86

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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.