Home / 15,254.36-21,048.60-8,540.27

Finding the Fourth Proportional to 15,254.36, 21,048.60 and 8,540.27

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Solution

The fourth proportional to 15,254.36, 21,048.60 and 8,540.27 is: 11,784.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,254.36 : 21,048.60 = 8,540.27 : x
  2. Step 2: Convert to fraction form
    15,254.36/21,048.60 = 8,540.27/x
  3. Step 3: Cross multiply
    15,254.36x = 21,048.60 × 8,540.27
  4. Step 4: Simplify right side
    15,254.36x = 179,760,727.12
  5. Step 5: Solve for x
    x = 179,760,727.12/15,254.36
  6. Step 6: Final answer
    x = 11,784.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.