Home / 8,677.21-13,015.69-2,103.45

Finding the Fourth Proportional to 8,677.21, 13,015.69 and 2,103.45

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Solution

The fourth proportional to 8,677.21, 13,015.69 and 2,103.45 is: 3,155.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,677.21 : 13,015.69 = 2,103.45 : x
  2. Step 2: Convert to fraction form
    8,677.21/13,015.69 = 2,103.45/x
  3. Step 3: Cross multiply
    8,677.21x = 13,015.69 × 2,103.45
  4. Step 4: Simplify right side
    8,677.21x = 27,377,853.13
  5. Step 5: Solve for x
    x = 27,377,853.13/8,677.21
  6. Step 6: Final answer
    x = 3,155.15

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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.