Home / 11,927.30-16,459.89-6,622.16

Finding the Fourth Proportional to 11,927.30, 16,459.89 and 6,622.16

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Solution

The fourth proportional to 11,927.30, 16,459.89 and 6,622.16 is: 9,138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,927.30 : 16,459.89 = 6,622.16 : x
  2. Step 2: Convert to fraction form
    11,927.30/16,459.89 = 6,622.16/x
  3. Step 3: Cross multiply
    11,927.30x = 16,459.89 × 6,622.16
  4. Step 4: Simplify right side
    11,927.30x = 109,000,025.16
  5. Step 5: Solve for x
    x = 109,000,025.16/11,927.30
  6. Step 6: Final answer
    x = 9,138.70

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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.