Home / 14,181.48-21,260.07-5,422.55

Finding the Fourth Proportional to 14,181.48, 21,260.07 and 5,422.55

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Solution

The fourth proportional to 14,181.48, 21,260.07 and 5,422.55 is: 8,129.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,181.48 : 21,260.07 = 5,422.55 : x
  2. Step 2: Convert to fraction form
    14,181.48/21,260.07 = 5,422.55/x
  3. Step 3: Cross multiply
    14,181.48x = 21,260.07 × 5,422.55
  4. Step 4: Simplify right side
    14,181.48x = 115,283,686.28
  5. Step 5: Solve for x
    x = 115,283,686.28/14,181.48
  6. Step 6: Final answer
    x = 8,129.17

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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.