Home / 15,382.09-21,225-10,076.19

Finding the Fourth Proportional to 15,382.09, 21,225 and 10,076.19

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Solution

The fourth proportional to 15,382.09, 21,225 and 10,076.19 is: 13,903.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,382.09 : 21,225 = 10,076.19 : x
  2. Step 2: Convert to fraction form
    15,382.09/21,225 = 10,076.19/x
  3. Step 3: Cross multiply
    15,382.09x = 21,225 × 10,076.19
  4. Step 4: Simplify right side
    15,382.09x = 213,867,132.75
  5. Step 5: Solve for x
    x = 213,867,132.75/15,382.09
  6. Step 6: Final answer
    x = 13,903.65

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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.