Home / 14,254.79-21,391.09-5,490.59

Finding the Fourth Proportional to 14,254.79, 21,391.09 and 5,490.59

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Solution

The fourth proportional to 14,254.79, 21,391.09 and 5,490.59 is: 8,239.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,254.79 : 21,391.09 = 5,490.59 : x
  2. Step 2: Convert to fraction form
    14,254.79/21,391.09 = 5,490.59/x
  3. Step 3: Cross multiply
    14,254.79x = 21,391.09 × 5,490.59
  4. Step 4: Simplify right side
    14,254.79x = 117,449,584.16
  5. Step 5: Solve for x
    x = 117,449,584.16/14,254.79
  6. Step 6: Final answer
    x = 8,239.31

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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.