Home / 15,230.97-21,025.58-8,943.75

Finding the Fourth Proportional to 15,230.97, 21,025.58 and 8,943.75

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Solution

The fourth proportional to 15,230.97, 21,025.58 and 8,943.75 is: 12,346.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,230.97 : 21,025.58 = 8,943.75 : x
  2. Step 2: Convert to fraction form
    15,230.97/21,025.58 = 8,943.75/x
  3. Step 3: Cross multiply
    15,230.97x = 21,025.58 × 8,943.75
  4. Step 4: Simplify right side
    15,230.97x = 188,047,486.41
  5. Step 5: Solve for x
    x = 188,047,486.41/15,230.97
  6. Step 6: Final answer
    x = 12,346.39

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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.