Home / 18,910.08-28,369.32-5,763.45

Finding the Fourth Proportional to 18,910.08, 28,369.32 and 5,763.45

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Solution

The fourth proportional to 18,910.08, 28,369.32 and 5,763.45 is: 8,646.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,910.08 : 28,369.32 = 5,763.45 : x
  2. Step 2: Convert to fraction form
    18,910.08/28,369.32 = 5,763.45/x
  3. Step 3: Cross multiply
    18,910.08x = 28,369.32 × 5,763.45
  4. Step 4: Simplify right side
    18,910.08x = 163,505,157.35
  5. Step 5: Solve for x
    x = 163,505,157.35/18,910.08
  6. Step 6: Final answer
    x = 8,646.46

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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.