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Finding the Fourth Proportional to 19,106.70, 28,654.50 and 8,013.08

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Solution

The fourth proportional to 19,106.70, 28,654.50 and 8,013.08 is: 12,017.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,106.70 : 28,654.50 = 8,013.08 : x
  2. Step 2: Convert to fraction form
    19,106.70/28,654.50 = 8,013.08/x
  3. Step 3: Cross multiply
    19,106.70x = 28,654.50 × 8,013.08
  4. Step 4: Simplify right side
    19,106.70x = 229,610,800.86
  5. Step 5: Solve for x
    x = 229,610,800.86/19,106.70
  6. Step 6: Final answer
    x = 12,017.29

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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.