Home / 10,989.77-16,485.41-4,415.94

Finding the Fourth Proportional to 10,989.77, 16,485.41 and 4,415.94

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Solution

The fourth proportional to 10,989.77, 16,485.41 and 4,415.94 is: 6,624.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.77 : 16,485.41 = 4,415.94 : x
  2. Step 2: Convert to fraction form
    10,989.77/16,485.41 = 4,415.94/x
  3. Step 3: Cross multiply
    10,989.77x = 16,485.41 × 4,415.94
  4. Step 4: Simplify right side
    10,989.77x = 72,798,581.44
  5. Step 5: Solve for x
    x = 72,798,581.44/10,989.77
  6. Step 6: Final answer
    x = 6,624.21

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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.