Home / 8,348.21-11,519.73-4,990.35

Finding the Fourth Proportional to 8,348.21, 11,519.73 and 4,990.35

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Solution

The fourth proportional to 8,348.21, 11,519.73 and 4,990.35 is: 6,886.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348.21 : 11,519.73 = 4,990.35 : x
  2. Step 2: Convert to fraction form
    8,348.21/11,519.73 = 4,990.35/x
  3. Step 3: Cross multiply
    8,348.21x = 11,519.73 × 4,990.35
  4. Step 4: Simplify right side
    8,348.21x = 57,487,484.61
  5. Step 5: Solve for x
    x = 57,487,484.61/8,348.21
  6. Step 6: Final answer
    x = 6,886.21

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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.