Home / 14,283.90-21,426.69-5,518.86

Finding the Fourth Proportional to 14,283.90, 21,426.69 and 5,518.86

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Solution

The fourth proportional to 14,283.90, 21,426.69 and 5,518.86 is: 8,278.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,283.90 : 21,426.69 = 5,518.86 : x
  2. Step 2: Convert to fraction form
    14,283.90/21,426.69 = 5,518.86/x
  3. Step 3: Cross multiply
    14,283.90x = 21,426.69 × 5,518.86
  4. Step 4: Simplify right side
    14,283.90x = 118,250,902.37
  5. Step 5: Solve for x
    x = 118,250,902.37/14,283.90
  6. Step 6: Final answer
    x = 8,278.61

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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.