Home / 15,850.94-21,876.60-9,135.26

Finding the Fourth Proportional to 15,850.94, 21,876.60 and 9,135.26

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Solution

The fourth proportional to 15,850.94, 21,876.60 and 9,135.26 is: 12,607.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,850.94 : 21,876.60 = 9,135.26 : x
  2. Step 2: Convert to fraction form
    15,850.94/21,876.60 = 9,135.26/x
  3. Step 3: Cross multiply
    15,850.94x = 21,876.60 × 9,135.26
  4. Step 4: Simplify right side
    15,850.94x = 199,848,428.92
  5. Step 5: Solve for x
    x = 199,848,428.92/15,850.94
  6. Step 6: Final answer
    x = 12,607.99

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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.