Home / 12,590.30-17,372.58-7,284.09

Finding the Fourth Proportional to 12,590.30, 17,372.58 and 7,284.09

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Solution

The fourth proportional to 12,590.30, 17,372.58 and 7,284.09 is: 10,050.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.30 : 17,372.58 = 7,284.09 : x
  2. Step 2: Convert to fraction form
    12,590.30/17,372.58 = 7,284.09/x
  3. Step 3: Cross multiply
    12,590.30x = 17,372.58 × 7,284.09
  4. Step 4: Simplify right side
    12,590.30x = 126,543,474.08
  5. Step 5: Solve for x
    x = 126,543,474.08/12,590.30
  6. Step 6: Final answer
    x = 10,050.87

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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.