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Finding the Fourth Proportional to 19,101.15, 28,657.80 and 8,567.10

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Solution

The fourth proportional to 19,101.15, 28,657.80 and 8,567.10 is: 12,853.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,101.15 : 28,657.80 = 8,567.10 : x
  2. Step 2: Convert to fraction form
    19,101.15/28,657.80 = 8,567.10/x
  3. Step 3: Cross multiply
    19,101.15x = 28,657.80 × 8,567.10
  4. Step 4: Simplify right side
    19,101.15x = 245,514,238.38
  5. Step 5: Solve for x
    x = 245,514,238.38/19,101.15
  6. Step 6: Final answer
    x = 12,853.37

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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.