Home / 27,186.71-40,779.55-11,172.87

Finding the Fourth Proportional to 27,186.71, 40,779.55 and 11,172.87

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Solution

The fourth proportional to 27,186.71, 40,779.55 and 11,172.87 is: 16,759.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,186.71 : 40,779.55 = 11,172.87 : x
  2. Step 2: Convert to fraction form
    27,186.71/40,779.55 = 11,172.87/x
  3. Step 3: Cross multiply
    27,186.71x = 40,779.55 × 11,172.87
  4. Step 4: Simplify right side
    27,186.71x = 455,624,624.77
  5. Step 5: Solve for x
    x = 455,624,624.77/27,186.71
  6. Step 6: Final answer
    x = 16,759.10

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1.5x scale

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.