Home / 11,943.89-16,483.07-6,638.75

Finding the Fourth Proportional to 11,943.89, 16,483.07 and 6,638.75

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Solution

The fourth proportional to 11,943.89, 16,483.07 and 6,638.75 is: 9,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,943.89 : 16,483.07 = 6,638.75 : x
  2. Step 2: Convert to fraction form
    11,943.89/16,483.07 = 6,638.75/x
  3. Step 3: Cross multiply
    11,943.89x = 16,483.07 × 6,638.75
  4. Step 4: Simplify right side
    11,943.89x = 109,426,980.96
  5. Step 5: Solve for x
    x = 109,426,980.96/11,943.89
  6. Step 6: Final answer
    x = 9,161.75

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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.