Home / 19,107.45-28,662.99-7,421.58

Finding the Fourth Proportional to 19,107.45, 28,662.99 and 7,421.58

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Solution

The fourth proportional to 19,107.45, 28,662.99 and 7,421.58 is: 11,133.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,107.45 : 28,662.99 = 7,421.58 : x
  2. Step 2: Convert to fraction form
    19,107.45/28,662.99 = 7,421.58/x
  3. Step 3: Cross multiply
    19,107.45x = 28,662.99 × 7,421.58
  4. Step 4: Simplify right side
    19,107.45x = 212,724,673.32
  5. Step 5: Solve for x
    x = 212,724,673.32/19,107.45
  6. Step 6: Final answer
    x = 11,133.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.