Home / 15,911.38-21,960.58-9,196.08

Finding the Fourth Proportional to 15,911.38, 21,960.58 and 9,196.08

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Solution

The fourth proportional to 15,911.38, 21,960.58 and 9,196.08 is: 12,692.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,911.38 : 21,960.58 = 9,196.08 : x
  2. Step 2: Convert to fraction form
    15,911.38/21,960.58 = 9,196.08/x
  3. Step 3: Cross multiply
    15,911.38x = 21,960.58 × 9,196.08
  4. Step 4: Simplify right side
    15,911.38x = 201,951,250.53
  5. Step 5: Solve for x
    x = 201,951,250.53/15,911.38
  6. Step 6: Final answer
    x = 12,692.25

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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.