Home / 12,769.76-19,156.44-5,369.60

Finding the Fourth Proportional to 12,769.76, 19,156.44 and 5,369.60

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Solution

The fourth proportional to 12,769.76, 19,156.44 and 5,369.60 is: 8,055.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769.76 : 19,156.44 = 5,369.60 : x
  2. Step 2: Convert to fraction form
    12,769.76/19,156.44 = 5,369.60/x
  3. Step 3: Cross multiply
    12,769.76x = 19,156.44 × 5,369.60
  4. Step 4: Simplify right side
    12,769.76x = 102,862,420.22
  5. Step 5: Solve for x
    x = 102,862,420.22/12,769.76
  6. Step 6: Final answer
    x = 8,055.16

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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.