Home / 8,603.21-12,903.59-2,759.06

Finding the Fourth Proportional to 8,603.21, 12,903.59 and 2,759.06

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Solution

The fourth proportional to 8,603.21, 12,903.59 and 2,759.06 is: 4,138.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.21 : 12,903.59 = 2,759.06 : x
  2. Step 2: Convert to fraction form
    8,603.21/12,903.59 = 2,759.06/x
  3. Step 3: Cross multiply
    8,603.21x = 12,903.59 × 2,759.06
  4. Step 4: Simplify right side
    8,603.21x = 35,601,714.51
  5. Step 5: Solve for x
    x = 35,601,714.51/8,603.21
  6. Step 6: Final answer
    x = 4,138.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.