Home / 8,267.60-12,401.40-2,111.60

Finding the Fourth Proportional to 8,267.60, 12,401.40 and 2,111.60

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Solution

The fourth proportional to 8,267.60, 12,401.40 and 2,111.60 is: 3,167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,267.60 : 12,401.40 = 2,111.60 : x
  2. Step 2: Convert to fraction form
    8,267.60/12,401.40 = 2,111.60/x
  3. Step 3: Cross multiply
    8,267.60x = 12,401.40 × 2,111.60
  4. Step 4: Simplify right side
    8,267.60x = 26,186,796.24
  5. Step 5: Solve for x
    x = 26,186,796.24/8,267.60
  6. Step 6: Final answer
    x = 3,167.40

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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.