Home / 12,190.63-16,822.66-6,813.40

Finding the Fourth Proportional to 12,190.63, 16,822.66 and 6,813.40

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Solution

The fourth proportional to 12,190.63, 16,822.66 and 6,813.40 is: 9,402.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.63 : 16,822.66 = 6,813.40 : x
  2. Step 2: Convert to fraction form
    12,190.63/16,822.66 = 6,813.40/x
  3. Step 3: Cross multiply
    12,190.63x = 16,822.66 × 6,813.40
  4. Step 4: Simplify right side
    12,190.63x = 114,619,511.64
  5. Step 5: Solve for x
    x = 114,619,511.64/12,190.63
  6. Step 6: Final answer
    x = 9,402.26

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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.