Home / 12,125.57-16,733.12-6,820.39

Finding the Fourth Proportional to 12,125.57, 16,733.12 and 6,820.39

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Solution

The fourth proportional to 12,125.57, 16,733.12 and 6,820.39 is: 9,412.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.57 : 16,733.12 = 6,820.39 : x
  2. Step 2: Convert to fraction form
    12,125.57/16,733.12 = 6,820.39/x
  3. Step 3: Cross multiply
    12,125.57x = 16,733.12 × 6,820.39
  4. Step 4: Simplify right side
    12,125.57x = 114,126,297.01
  5. Step 5: Solve for x
    x = 114,126,297.01/12,125.57
  6. Step 6: Final answer
    x = 9,412.04

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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.