Home / 8,433.24-12,649.86-3,813

Finding the Fourth Proportional to 8,433.24, 12,649.86 and 3,813

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Solution

The fourth proportional to 8,433.24, 12,649.86 and 3,813 is: 5,719.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,433.24 : 12,649.86 = 3,813 : x
  2. Step 2: Convert to fraction form
    8,433.24/12,649.86 = 3,813/x
  3. Step 3: Cross multiply
    8,433.24x = 12,649.86 × 3,813
  4. Step 4: Simplify right side
    8,433.24x = 48,233,916.18
  5. Step 5: Solve for x
    x = 48,233,916.18/8,433.24
  6. Step 6: Final answer
    x = 5,719.50

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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.