Home / 9,118.20-12,583.68-5,085.48

Finding the Fourth Proportional to 9,118.20, 12,583.68 and 5,085.48

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Solution

The fourth proportional to 9,118.20, 12,583.68 and 5,085.48 is: 7,018.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.20 : 12,583.68 = 5,085.48 : x
  2. Step 2: Convert to fraction form
    9,118.20/12,583.68 = 5,085.48/x
  3. Step 3: Cross multiply
    9,118.20x = 12,583.68 × 5,085.48
  4. Step 4: Simplify right side
    9,118.20x = 63,994,052.97
  5. Step 5: Solve for x
    x = 63,994,052.97/9,118.20
  6. Step 6: Final answer
    x = 7,018.28

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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.