Home / 12,474.95-18,715.41-4,155.03

Finding the Fourth Proportional to 12,474.95, 18,715.41 and 4,155.03

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Solution

The fourth proportional to 12,474.95, 18,715.41 and 4,155.03 is: 6,233.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.95 : 18,715.41 = 4,155.03 : x
  2. Step 2: Convert to fraction form
    12,474.95/18,715.41 = 4,155.03/x
  3. Step 3: Cross multiply
    12,474.95x = 18,715.41 × 4,155.03
  4. Step 4: Simplify right side
    12,474.95x = 77,763,090.01
  5. Step 5: Solve for x
    x = 77,763,090.01/12,474.95
  6. Step 6: Final answer
    x = 6,233.54

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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.