Home / 19,116.10-28,674.12-12,540.73

Finding the Fourth Proportional to 19,116.10, 28,674.12 and 12,540.73

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Solution

The fourth proportional to 19,116.10, 28,674.12 and 12,540.73 is: 18,811.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116.10 : 28,674.12 = 12,540.73 : x
  2. Step 2: Convert to fraction form
    19,116.10/28,674.12 = 12,540.73/x
  3. Step 3: Cross multiply
    19,116.10x = 28,674.12 × 12,540.73
  4. Step 4: Simplify right side
    19,116.10x = 359,594,396.91
  5. Step 5: Solve for x
    x = 359,594,396.91/19,116.10
  6. Step 6: Final answer
    x = 18,811.08

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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.