Home / 19,195.20-28,775.76-7,516.80

Finding the Fourth Proportional to 19,195.20, 28,775.76 and 7,516.80

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Solution

The fourth proportional to 19,195.20, 28,775.76 and 7,516.80 is: 11,268.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,195.20 : 28,775.76 = 7,516.80 : x
  2. Step 2: Convert to fraction form
    19,195.20/28,775.76 = 7,516.80/x
  3. Step 3: Cross multiply
    19,195.20x = 28,775.76 × 7,516.80
  4. Step 4: Simplify right side
    19,195.20x = 216,301,632.77
  5. Step 5: Solve for x
    x = 216,301,632.77/19,195.20
  6. Step 6: Final answer
    x = 11,268.53

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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.