Home / 14,022.88-21,026.88-8,181.28

Finding the Fourth Proportional to 14,022.88, 21,026.88 and 8,181.28

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Solution

The fourth proportional to 14,022.88, 21,026.88 and 8,181.28 is: 12,267.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,022.88 : 21,026.88 = 8,181.28 : x
  2. Step 2: Convert to fraction form
    14,022.88/21,026.88 = 8,181.28/x
  3. Step 3: Cross multiply
    14,022.88x = 21,026.88 × 8,181.28
  4. Step 4: Simplify right side
    14,022.88x = 172,026,792.81
  5. Step 5: Solve for x
    x = 172,026,792.81/14,022.88
  6. Step 6: Final answer
    x = 12,267.58

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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.