Home / 9,860.99-13,609.37-5,613.09

Finding the Fourth Proportional to 9,860.99, 13,609.37 and 5,613.09

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Solution

The fourth proportional to 9,860.99, 13,609.37 and 5,613.09 is: 7,746.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,860.99 : 13,609.37 = 5,613.09 : x
  2. Step 2: Convert to fraction form
    9,860.99/13,609.37 = 5,613.09/x
  3. Step 3: Cross multiply
    9,860.99x = 13,609.37 × 5,613.09
  4. Step 4: Simplify right side
    9,860.99x = 76,390,618.65
  5. Step 5: Solve for x
    x = 76,390,618.65/9,860.99
  6. Step 6: Final answer
    x = 7,746.75

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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.