Home / 12,769.92-19,157.31-4,978.26

Finding the Fourth Proportional to 12,769.92, 19,157.31 and 4,978.26

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Solution

The fourth proportional to 12,769.92, 19,157.31 and 4,978.26 is: 7,468.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769.92 : 19,157.31 = 4,978.26 : x
  2. Step 2: Convert to fraction form
    12,769.92/19,157.31 = 4,978.26/x
  3. Step 3: Cross multiply
    12,769.92x = 19,157.31 × 4,978.26
  4. Step 4: Simplify right side
    12,769.92x = 95,370,070.08
  5. Step 5: Solve for x
    x = 95,370,070.08/12,769.92
  6. Step 6: Final answer
    x = 7,468.34

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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.