Home / 14,106.20-21,116.10-8,245.40

Finding the Fourth Proportional to 14,106.20, 21,116.10 and 8,245.40

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Solution

The fourth proportional to 14,106.20, 21,116.10 and 8,245.40 is: 12,342.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,106.20 : 21,116.10 = 8,245.40 : x
  2. Step 2: Convert to fraction form
    14,106.20/21,116.10 = 8,245.40/x
  3. Step 3: Cross multiply
    14,106.20x = 21,116.10 × 8,245.40
  4. Step 4: Simplify right side
    14,106.20x = 174,110,690.94
  5. Step 5: Solve for x
    x = 174,110,690.94/14,106.20
  6. Step 6: Final answer
    x = 12,342.85

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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.