Home / 8,119.35-11,205.54-4,931.91

Finding the Fourth Proportional to 8,119.35, 11,205.54 and 4,931.91

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Solution

The fourth proportional to 8,119.35, 11,205.54 and 4,931.91 is: 6,806.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.35 : 11,205.54 = 4,931.91 : x
  2. Step 2: Convert to fraction form
    8,119.35/11,205.54 = 4,931.91/x
  3. Step 3: Cross multiply
    8,119.35x = 11,205.54 × 4,931.91
  4. Step 4: Simplify right side
    8,119.35x = 55,264,714.78
  5. Step 5: Solve for x
    x = 55,264,714.78/8,119.35
  6. Step 6: Final answer
    x = 6,806.54

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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.