Home / 8,950.90-13,430.67-3,689.80

Finding the Fourth Proportional to 8,950.90, 13,430.67 and 3,689.80

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Solution

The fourth proportional to 8,950.90, 13,430.67 and 3,689.80 is: 5,536.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.90 : 13,430.67 = 3,689.80 : x
  2. Step 2: Convert to fraction form
    8,950.90/13,430.67 = 3,689.80/x
  3. Step 3: Cross multiply
    8,950.90x = 13,430.67 × 3,689.80
  4. Step 4: Simplify right side
    8,950.90x = 49,556,452.59
  5. Step 5: Solve for x
    x = 49,556,452.59/8,950.90
  6. Step 6: Final answer
    x = 5,536.48

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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.