Home / 18,883.43-28,311.32-9,518.82

Finding the Fourth Proportional to 18,883.43, 28,311.32 and 9,518.82

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Solution

The fourth proportional to 18,883.43, 28,311.32 and 9,518.82 is: 14,271.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,883.43 : 28,311.32 = 9,518.82 : x
  2. Step 2: Convert to fraction form
    18,883.43/28,311.32 = 9,518.82/x
  3. Step 3: Cross multiply
    18,883.43x = 28,311.32 × 9,518.82
  4. Step 4: Simplify right side
    18,883.43x = 269,490,276.67
  5. Step 5: Solve for x
    x = 269,490,276.67/18,883.43
  6. Step 6: Final answer
    x = 14,271.26

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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.