Home / 15,310.12-21,125.44-9,021.64

Finding the Fourth Proportional to 15,310.12, 21,125.44 and 9,021.64

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Solution

The fourth proportional to 15,310.12, 21,125.44 and 9,021.64 is: 12,448.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.12 : 21,125.44 = 9,021.64 : x
  2. Step 2: Convert to fraction form
    15,310.12/21,125.44 = 9,021.64/x
  3. Step 3: Cross multiply
    15,310.12x = 21,125.44 × 9,021.64
  4. Step 4: Simplify right side
    15,310.12x = 190,586,114.52
  5. Step 5: Solve for x
    x = 190,586,114.52/15,310.12
  6. Step 6: Final answer
    x = 12,448.37

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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.