Home / 8,537.05-11,779.14-5,179.20

Finding the Fourth Proportional to 8,537.05, 11,779.14 and 5,179.20

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Solution

The fourth proportional to 8,537.05, 11,779.14 and 5,179.20 is: 7,146.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,537.05 : 11,779.14 = 5,179.20 : x
  2. Step 2: Convert to fraction form
    8,537.05/11,779.14 = 5,179.20/x
  3. Step 3: Cross multiply
    8,537.05x = 11,779.14 × 5,179.20
  4. Step 4: Simplify right side
    8,537.05x = 61,006,521.89
  5. Step 5: Solve for x
    x = 61,006,521.89/8,537.05
  6. Step 6: Final answer
    x = 7,146.09

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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.