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Finding the Fourth Proportional to 19,124.80, 28,679.10 and 9,267.10

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Solution

The fourth proportional to 19,124.80, 28,679.10 and 9,267.10 is: 13,896.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,124.80 : 28,679.10 = 9,267.10 : x
  2. Step 2: Convert to fraction form
    19,124.80/28,679.10 = 9,267.10/x
  3. Step 3: Cross multiply
    19,124.80x = 28,679.10 × 9,267.10
  4. Step 4: Simplify right side
    19,124.80x = 265,772,087.61
  5. Step 5: Solve for x
    x = 265,772,087.61/19,124.80
  6. Step 6: Final answer
    x = 13,896.73

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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.