Home / 19,170.95-28,768.37-7,325.78

Finding the Fourth Proportional to 19,170.95, 28,768.37 and 7,325.78

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Solution

The fourth proportional to 19,170.95, 28,768.37 and 7,325.78 is: 10,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,170.95 : 28,768.37 = 7,325.78 : x
  2. Step 2: Convert to fraction form
    19,170.95/28,768.37 = 7,325.78/x
  3. Step 3: Cross multiply
    19,170.95x = 28,768.37 × 7,325.78
  4. Step 4: Simplify right side
    19,170.95x = 210,750,569.11
  5. Step 5: Solve for x
    x = 210,750,569.11/19,170.95
  6. Step 6: Final answer
    x = 10,993.23

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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.