Home / 11,146.78-15,381.98-6,110.10

Finding the Fourth Proportional to 11,146.78, 15,381.98 and 6,110.10

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Solution

The fourth proportional to 11,146.78, 15,381.98 and 6,110.10 is: 8,431.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.78 : 15,381.98 = 6,110.10 : x
  2. Step 2: Convert to fraction form
    11,146.78/15,381.98 = 6,110.10/x
  3. Step 3: Cross multiply
    11,146.78x = 15,381.98 × 6,110.10
  4. Step 4: Simplify right side
    11,146.78x = 93,985,436.00
  5. Step 5: Solve for x
    x = 93,985,436.00/11,146.78
  6. Step 6: Final answer
    x = 8,431.62

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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.