Home / 18,835.08-28,218.18-8,821.46

Finding the Fourth Proportional to 18,835.08, 28,218.18 and 8,821.46

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Solution

The fourth proportional to 18,835.08, 28,218.18 and 8,821.46 is: 13,216.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.08 : 28,218.18 = 8,821.46 : x
  2. Step 2: Convert to fraction form
    18,835.08/28,218.18 = 8,821.46/x
  3. Step 3: Cross multiply
    18,835.08x = 28,218.18 × 8,821.46
  4. Step 4: Simplify right side
    18,835.08x = 248,925,546.14
  5. Step 5: Solve for x
    x = 248,925,546.14/18,835.08
  6. Step 6: Final answer
    x = 13,216.06

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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.