Home / 8,677.06-13,015.60-2,103.20

Finding the Fourth Proportional to 8,677.06, 13,015.60 and 2,103.20

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Solution

The fourth proportional to 8,677.06, 13,015.60 and 2,103.20 is: 3,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,677.06 : 13,015.60 = 2,103.20 : x
  2. Step 2: Convert to fraction form
    8,677.06/13,015.60 = 2,103.20/x
  3. Step 3: Cross multiply
    8,677.06x = 13,015.60 × 2,103.20
  4. Step 4: Simplify right side
    8,677.06x = 27,374,409.92
  5. Step 5: Solve for x
    x = 27,374,409.92/8,677.06
  6. Step 6: Final answer
    x = 3,154.80

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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.