Home / 8,420.97-12,631.50-4,025.10

Finding the Fourth Proportional to 8,420.97, 12,631.50 and 4,025.10

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Solution

The fourth proportional to 8,420.97, 12,631.50 and 4,025.10 is: 6,037.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420.97 : 12,631.50 = 4,025.10 : x
  2. Step 2: Convert to fraction form
    8,420.97/12,631.50 = 4,025.10/x
  3. Step 3: Cross multiply
    8,420.97x = 12,631.50 × 4,025.10
  4. Step 4: Simplify right side
    8,420.97x = 50,843,050.65
  5. Step 5: Solve for x
    x = 50,843,050.65/8,420.97
  6. Step 6: Final answer
    x = 6,037.67

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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.