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Finding the Fourth Proportional to 18,828.96, 28,242.08 and 8,835.98

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Solution

The fourth proportional to 18,828.96, 28,242.08 and 8,835.98 is: 13,253.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.96 : 28,242.08 = 8,835.98 : x
  2. Step 2: Convert to fraction form
    18,828.96/28,242.08 = 8,835.98/x
  3. Step 3: Cross multiply
    18,828.96x = 28,242.08 × 8,835.98
  4. Step 4: Simplify right side
    18,828.96x = 249,546,550.06
  5. Step 5: Solve for x
    x = 249,546,550.06/18,828.96
  6. Step 6: Final answer
    x = 13,253.33

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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.