Home / 11,928.21-16,459.74-6,622.47

Finding the Fourth Proportional to 11,928.21, 16,459.74 and 6,622.47

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Solution

The fourth proportional to 11,928.21, 16,459.74 and 6,622.47 is: 9,138.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.21 : 16,459.74 = 6,622.47 : x
  2. Step 2: Convert to fraction form
    11,928.21/16,459.74 = 6,622.47/x
  3. Step 3: Cross multiply
    11,928.21x = 16,459.74 × 6,622.47
  4. Step 4: Simplify right side
    11,928.21x = 109,004,134.36
  5. Step 5: Solve for x
    x = 109,004,134.36/11,928.21
  6. Step 6: Final answer
    x = 9,138.35

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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.