Home / 18,970.05-28,455.89-5,822.94

Finding the Fourth Proportional to 18,970.05, 28,455.89 and 5,822.94

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Solution

The fourth proportional to 18,970.05, 28,455.89 and 5,822.94 is: 8,734.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970.05 : 28,455.89 = 5,822.94 : x
  2. Step 2: Convert to fraction form
    18,970.05/28,455.89 = 5,822.94/x
  3. Step 3: Cross multiply
    18,970.05x = 28,455.89 × 5,822.94
  4. Step 4: Simplify right side
    18,970.05x = 165,696,940.12
  5. Step 5: Solve for x
    x = 165,696,940.12/18,970.05
  6. Step 6: Final answer
    x = 8,734.66

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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.