Home / 8,280.57-12,423.29-3,347.67

Finding the Fourth Proportional to 8,280.57, 12,423.29 and 3,347.67

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Solution

The fourth proportional to 8,280.57, 12,423.29 and 3,347.67 is: 5,022.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.57 : 12,423.29 = 3,347.67 : x
  2. Step 2: Convert to fraction form
    8,280.57/12,423.29 = 3,347.67/x
  3. Step 3: Cross multiply
    8,280.57x = 12,423.29 × 3,347.67
  4. Step 4: Simplify right side
    8,280.57x = 41,589,058.50
  5. Step 5: Solve for x
    x = 41,589,058.50/8,280.57
  6. Step 6: Final answer
    x = 5,022.49

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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.