Home / 7,590.10-11,379.62-5,118.78

Finding the Fourth Proportional to 7,590.10, 11,379.62 and 5,118.78

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Solution

The fourth proportional to 7,590.10, 11,379.62 and 5,118.78 is: 7,674.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,590.10 : 11,379.62 = 5,118.78 : x
  2. Step 2: Convert to fraction form
    7,590.10/11,379.62 = 5,118.78/x
  3. Step 3: Cross multiply
    7,590.10x = 11,379.62 × 5,118.78
  4. Step 4: Simplify right side
    7,590.10x = 58,249,771.26
  5. Step 5: Solve for x
    x = 58,249,771.26/7,590.10
  6. Step 6: Final answer
    x = 7,674.44

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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.