Home / 10,109.65-15,164.40-2,613.19

Finding the Fourth Proportional to 10,109.65, 15,164.40 and 2,613.19

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Solution

The fourth proportional to 10,109.65, 15,164.40 and 2,613.19 is: 3,919.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109.65 : 15,164.40 = 2,613.19 : x
  2. Step 2: Convert to fraction form
    10,109.65/15,164.40 = 2,613.19/x
  3. Step 3: Cross multiply
    10,109.65x = 15,164.40 × 2,613.19
  4. Step 4: Simplify right side
    10,109.65x = 39,627,458.44
  5. Step 5: Solve for x
    x = 39,627,458.44/10,109.65
  6. Step 6: Final answer
    x = 3,919.77

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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.