Home / 12,311.02-16,989.23-6,722.02

Finding the Fourth Proportional to 12,311.02, 16,989.23 and 6,722.02

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Solution

The fourth proportional to 12,311.02, 16,989.23 and 6,722.02 is: 9,276.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,311.02 : 16,989.23 = 6,722.02 : x
  2. Step 2: Convert to fraction form
    12,311.02/16,989.23 = 6,722.02/x
  3. Step 3: Cross multiply
    12,311.02x = 16,989.23 × 6,722.02
  4. Step 4: Simplify right side
    12,311.02x = 114,201,943.84
  5. Step 5: Solve for x
    x = 114,201,943.84/12,311.02
  6. Step 6: Final answer
    x = 9,276.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.