Home / 18,677.58-28,006.65-5,528.18

Finding the Fourth Proportional to 18,677.58, 28,006.65 and 5,528.18

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Solution

The fourth proportional to 18,677.58, 28,006.65 and 5,528.18 is: 8,289.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.58 : 28,006.65 = 5,528.18 : x
  2. Step 2: Convert to fraction form
    18,677.58/28,006.65 = 5,528.18/x
  3. Step 3: Cross multiply
    18,677.58x = 28,006.65 × 5,528.18
  4. Step 4: Simplify right side
    18,677.58x = 154,825,662.36
  5. Step 5: Solve for x
    x = 154,825,662.36/18,677.58
  6. Step 6: Final answer
    x = 8,289.39

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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.