Home / 19,219.44-28,808.10-7,519.80

Finding the Fourth Proportional to 19,219.44, 28,808.10 and 7,519.80

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Solution

The fourth proportional to 19,219.44, 28,808.10 and 7,519.80 is: 11,271.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,219.44 : 28,808.10 = 7,519.80 : x
  2. Step 2: Convert to fraction form
    19,219.44/28,808.10 = 7,519.80/x
  3. Step 3: Cross multiply
    19,219.44x = 28,808.10 × 7,519.80
  4. Step 4: Simplify right side
    19,219.44x = 216,631,150.38
  5. Step 5: Solve for x
    x = 216,631,150.38/19,219.44
  6. Step 6: Final answer
    x = 11,271.46

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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.