Home / 11,114.60-16,623.30-8,490.20

Finding the Fourth Proportional to 11,114.60, 16,623.30 and 8,490.20

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Solution

The fourth proportional to 11,114.60, 16,623.30 and 8,490.20 is: 12,698.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.60 : 16,623.30 = 8,490.20 : x
  2. Step 2: Convert to fraction form
    11,114.60/16,623.30 = 8,490.20/x
  3. Step 3: Cross multiply
    11,114.60x = 16,623.30 × 8,490.20
  4. Step 4: Simplify right side
    11,114.60x = 141,135,141.66
  5. Step 5: Solve for x
    x = 141,135,141.66/11,114.60
  6. Step 6: Final answer
    x = 12,698.18

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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.