Home / 10,913.25-16,370.55-3,122.67

Finding the Fourth Proportional to 10,913.25, 16,370.55 and 3,122.67

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Solution

The fourth proportional to 10,913.25, 16,370.55 and 3,122.67 is: 4,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.25 : 16,370.55 = 3,122.67 : x
  2. Step 2: Convert to fraction form
    10,913.25/16,370.55 = 3,122.67/x
  3. Step 3: Cross multiply
    10,913.25x = 16,370.55 × 3,122.67
  4. Step 4: Simplify right side
    10,913.25x = 51,119,825.37
  5. Step 5: Solve for x
    x = 51,119,825.37/10,913.25
  6. Step 6: Final answer
    x = 4,684.20

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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.