Home / 10,991.45-16,487.93-4,417.64

Finding the Fourth Proportional to 10,991.45, 16,487.93 and 4,417.64

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Solution

The fourth proportional to 10,991.45, 16,487.93 and 4,417.64 is: 6,626.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.45 : 16,487.93 = 4,417.64 : x
  2. Step 2: Convert to fraction form
    10,991.45/16,487.93 = 4,417.64/x
  3. Step 3: Cross multiply
    10,991.45x = 16,487.93 × 4,417.64
  4. Step 4: Simplify right side
    10,991.45x = 72,837,739.09
  5. Step 5: Solve for x
    x = 72,837,739.09/10,991.45
  6. Step 6: Final answer
    x = 6,626.76

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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.