Home / 12,133.10-18,200.55-4,340.90

Finding the Fourth Proportional to 12,133.10, 18,200.55 and 4,340.90

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Solution

The fourth proportional to 12,133.10, 18,200.55 and 4,340.90 is: 6,511.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,133.10 : 18,200.55 = 4,340.90 : x
  2. Step 2: Convert to fraction form
    12,133.10/18,200.55 = 4,340.90/x
  3. Step 3: Cross multiply
    12,133.10x = 18,200.55 × 4,340.90
  4. Step 4: Simplify right side
    12,133.10x = 79,006,767.50
  5. Step 5: Solve for x
    x = 79,006,767.50/12,133.10
  6. Step 6: Final answer
    x = 6,511.67

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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.