Home / 15,255.49-21,052.36-8,541.10

Finding the Fourth Proportional to 15,255.49, 21,052.36 and 8,541.10

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Solution

The fourth proportional to 15,255.49, 21,052.36 and 8,541.10 is: 11,786.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,255.49 : 21,052.36 = 8,541.10 : x
  2. Step 2: Convert to fraction form
    15,255.49/21,052.36 = 8,541.10/x
  3. Step 3: Cross multiply
    15,255.49x = 21,052.36 × 8,541.10
  4. Step 4: Simplify right side
    15,255.49x = 179,810,182.52
  5. Step 5: Solve for x
    x = 179,810,182.52/15,255.49
  6. Step 6: Final answer
    x = 11,786.59

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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.