Home / 8,280.15-11,426.31-4,742.67

Finding the Fourth Proportional to 8,280.15, 11,426.31 and 4,742.67

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Solution

The fourth proportional to 8,280.15, 11,426.31 and 4,742.67 is: 6,544.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.15 : 11,426.31 = 4,742.67 : x
  2. Step 2: Convert to fraction form
    8,280.15/11,426.31 = 4,742.67/x
  3. Step 3: Cross multiply
    8,280.15x = 11,426.31 × 4,742.67
  4. Step 4: Simplify right side
    8,280.15x = 54,191,217.65
  5. Step 5: Solve for x
    x = 54,191,217.65/8,280.15
  6. Step 6: Final answer
    x = 6,544.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.