Home / 18,829.83-28,210.32-8,816.21

Finding the Fourth Proportional to 18,829.83, 28,210.32 and 8,816.21

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Solution

The fourth proportional to 18,829.83, 28,210.32 and 8,816.21 is: 13,208.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.83 : 28,210.32 = 8,816.21 : x
  2. Step 2: Convert to fraction form
    18,829.83/28,210.32 = 8,816.21/x
  3. Step 3: Cross multiply
    18,829.83x = 28,210.32 × 8,816.21
  4. Step 4: Simplify right side
    18,829.83x = 248,707,964.24
  5. Step 5: Solve for x
    x = 248,707,964.24/18,829.83
  6. Step 6: Final answer
    x = 13,208.19

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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.