Home / 10,644.48-15,976.80-5,454

Finding the Fourth Proportional to 10,644.48, 15,976.80 and 5,454

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Solution

The fourth proportional to 10,644.48, 15,976.80 and 5,454 is: 8,186.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,644.48 : 15,976.80 = 5,454 : x
  2. Step 2: Convert to fraction form
    10,644.48/15,976.80 = 5,454/x
  3. Step 3: Cross multiply
    10,644.48x = 15,976.80 × 5,454
  4. Step 4: Simplify right side
    10,644.48x = 87,137,467.20
  5. Step 5: Solve for x
    x = 87,137,467.20/10,644.48
  6. Step 6: Final answer
    x = 8,186.16

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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.