Home / 15,367.98-21,207.62-8,654.28

Finding the Fourth Proportional to 15,367.98, 21,207.62 and 8,654.28

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Solution

The fourth proportional to 15,367.98, 21,207.62 and 8,654.28 is: 11,942.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,367.98 : 21,207.62 = 8,654.28 : x
  2. Step 2: Convert to fraction form
    15,367.98/21,207.62 = 8,654.28/x
  3. Step 3: Cross multiply
    15,367.98x = 21,207.62 × 8,654.28
  4. Step 4: Simplify right side
    15,367.98x = 183,536,638.34
  5. Step 5: Solve for x
    x = 183,536,638.34/15,367.98
  6. Step 6: Final answer
    x = 11,942.80

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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.