Home / 11,907.12-17,856.85-4,007.50

Finding the Fourth Proportional to 11,907.12, 17,856.85 and 4,007.50

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Solution

The fourth proportional to 11,907.12, 17,856.85 and 4,007.50 is: 6,009.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.12 : 17,856.85 = 4,007.50 : x
  2. Step 2: Convert to fraction form
    11,907.12/17,856.85 = 4,007.50/x
  3. Step 3: Cross multiply
    11,907.12x = 17,856.85 × 4,007.50
  4. Step 4: Simplify right side
    11,907.12x = 71,561,326.38
  5. Step 5: Solve for x
    x = 71,561,326.38/11,907.12
  6. Step 6: Final answer
    x = 6,009.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.