Home / 11,555.92-17,343.60-4,987.09

Finding the Fourth Proportional to 11,555.92, 17,343.60 and 4,987.09

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Solution

The fourth proportional to 11,555.92, 17,343.60 and 4,987.09 is: 7,484.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,555.92 : 17,343.60 = 4,987.09 : x
  2. Step 2: Convert to fraction form
    11,555.92/17,343.60 = 4,987.09/x
  3. Step 3: Cross multiply
    11,555.92x = 17,343.60 × 4,987.09
  4. Step 4: Simplify right side
    11,555.92x = 86,494,094.12
  5. Step 5: Solve for x
    x = 86,494,094.12/11,555.92
  6. Step 6: Final answer
    x = 7,484.83

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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.