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Finding the Fourth Proportional to 11,334.61, 15,636.72 and 7,554.09

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Solution

The fourth proportional to 11,334.61, 15,636.72 and 7,554.09 is: 10,421.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,334.61 : 15,636.72 = 7,554.09 : x
  2. Step 2: Convert to fraction form
    11,334.61/15,636.72 = 7,554.09/x
  3. Step 3: Cross multiply
    11,334.61x = 15,636.72 × 7,554.09
  4. Step 4: Simplify right side
    11,334.61x = 118,121,190.18
  5. Step 5: Solve for x
    x = 118,121,190.18/11,334.61
  6. Step 6: Final answer
    x = 10,421.28

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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.