Home / 7,622.95-11,438.81-4,112.95

Finding the Fourth Proportional to 7,622.95, 11,438.81 and 4,112.95

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Solution

The fourth proportional to 7,622.95, 11,438.81 and 4,112.95 is: 6,171.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.95 : 11,438.81 = 4,112.95 : x
  2. Step 2: Convert to fraction form
    7,622.95/11,438.81 = 4,112.95/x
  3. Step 3: Cross multiply
    7,622.95x = 11,438.81 × 4,112.95
  4. Step 4: Simplify right side
    7,622.95x = 47,047,253.59
  5. Step 5: Solve for x
    x = 47,047,253.59/7,622.95
  6. Step 6: Final answer
    x = 6,171.79

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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.