Home / 15,145.26-20,890.73-9,774.56

Finding the Fourth Proportional to 15,145.26, 20,890.73 and 9,774.56

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Solution

The fourth proportional to 15,145.26, 20,890.73 and 9,774.56 is: 13,482.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.26 : 20,890.73 = 9,774.56 : x
  2. Step 2: Convert to fraction form
    15,145.26/20,890.73 = 9,774.56/x
  3. Step 3: Cross multiply
    15,145.26x = 20,890.73 × 9,774.56
  4. Step 4: Simplify right side
    15,145.26x = 204,197,613.81
  5. Step 5: Solve for x
    x = 204,197,613.81/15,145.26
  6. Step 6: Final answer
    x = 13,482.61

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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.