Home / 19,007.58-28,511.40-5,157.66

Finding the Fourth Proportional to 19,007.58, 28,511.40 and 5,157.66

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Solution

The fourth proportional to 19,007.58, 28,511.40 and 5,157.66 is: 7,736.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,007.58 : 28,511.40 = 5,157.66 : x
  2. Step 2: Convert to fraction form
    19,007.58/28,511.40 = 5,157.66/x
  3. Step 3: Cross multiply
    19,007.58x = 28,511.40 × 5,157.66
  4. Step 4: Simplify right side
    19,007.58x = 147,052,107.32
  5. Step 5: Solve for x
    x = 147,052,107.32/19,007.58
  6. Step 6: Final answer
    x = 7,736.50

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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.