Home / 11,153.85-16,731.31-6,219.74

Finding the Fourth Proportional to 11,153.85, 16,731.31 and 6,219.74

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Solution

The fourth proportional to 11,153.85, 16,731.31 and 6,219.74 is: 9,329.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.85 : 16,731.31 = 6,219.74 : x
  2. Step 2: Convert to fraction form
    11,153.85/16,731.31 = 6,219.74/x
  3. Step 3: Cross multiply
    11,153.85x = 16,731.31 × 6,219.74
  4. Step 4: Simplify right side
    11,153.85x = 104,064,341.89
  5. Step 5: Solve for x
    x = 104,064,341.89/11,153.85
  6. Step 6: Final answer
    x = 9,329.90

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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.