Home / 11,943.72-16,482.89-6,638.63

Finding the Fourth Proportional to 11,943.72, 16,482.89 and 6,638.63

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Solution

The fourth proportional to 11,943.72, 16,482.89 and 6,638.63 is: 9,161.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,943.72 : 16,482.89 = 6,638.63 : x
  2. Step 2: Convert to fraction form
    11,943.72/16,482.89 = 6,638.63/x
  3. Step 3: Cross multiply
    11,943.72x = 16,482.89 × 6,638.63
  4. Step 4: Simplify right side
    11,943.72x = 109,423,742.22
  5. Step 5: Solve for x
    x = 109,423,742.22/11,943.72
  6. Step 6: Final answer
    x = 9,161.61

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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.