Home / 12,126.03-16,733.75-6,820.84

Finding the Fourth Proportional to 12,126.03, 16,733.75 and 6,820.84

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Solution

The fourth proportional to 12,126.03, 16,733.75 and 6,820.84 is: 9,412.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.03 : 16,733.75 = 6,820.84 : x
  2. Step 2: Convert to fraction form
    12,126.03/16,733.75 = 6,820.84/x
  3. Step 3: Cross multiply
    12,126.03x = 16,733.75 × 6,820.84
  4. Step 4: Simplify right side
    12,126.03x = 114,138,218.16
  5. Step 5: Solve for x
    x = 114,138,218.16/12,126.03
  6. Step 6: Final answer
    x = 9,412.66

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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.