Home / 8,813.03-12,150.72-6,426.45

Finding the Fourth Proportional to 8,813.03, 12,150.72 and 6,426.45

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Solution

The fourth proportional to 8,813.03, 12,150.72 and 6,426.45 is: 8,860.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.03 : 12,150.72 = 6,426.45 : x
  2. Step 2: Convert to fraction form
    8,813.03/12,150.72 = 6,426.45/x
  3. Step 3: Cross multiply
    8,813.03x = 12,150.72 × 6,426.45
  4. Step 4: Simplify right side
    8,813.03x = 78,085,994.54
  5. Step 5: Solve for x
    x = 78,085,994.54/8,813.03
  6. Step 6: Final answer
    x = 8,860.29

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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.