Home / 11,313.20-16,967.43-4,290.78

Finding the Fourth Proportional to 11,313.20, 16,967.43 and 4,290.78

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Solution

The fourth proportional to 11,313.20, 16,967.43 and 4,290.78 is: 6,435.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.20 : 16,967.43 = 4,290.78 : x
  2. Step 2: Convert to fraction form
    11,313.20/16,967.43 = 4,290.78/x
  3. Step 3: Cross multiply
    11,313.20x = 16,967.43 × 4,290.78
  4. Step 4: Simplify right side
    11,313.20x = 72,803,509.30
  5. Step 5: Solve for x
    x = 72,803,509.30/11,313.20
  6. Step 6: Final answer
    x = 6,435.27

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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.