Home / 15,256.51-21,052.52-8,541.61

Finding the Fourth Proportional to 15,256.51, 21,052.52 and 8,541.61

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Solution

The fourth proportional to 15,256.51, 21,052.52 and 8,541.61 is: 11,786.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,256.51 : 21,052.52 = 8,541.61 : x
  2. Step 2: Convert to fraction form
    15,256.51/21,052.52 = 8,541.61/x
  3. Step 3: Cross multiply
    15,256.51x = 21,052.52 × 8,541.61
  4. Step 4: Simplify right side
    15,256.51x = 179,822,372.65
  5. Step 5: Solve for x
    x = 179,822,372.65/15,256.51
  6. Step 6: Final answer
    x = 11,786.60

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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.