Home / 10,907.40-15,051.81-6,665.56

Finding the Fourth Proportional to 10,907.40, 15,051.81 and 6,665.56

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Solution

The fourth proportional to 10,907.40, 15,051.81 and 6,665.56 is: 9,198.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,907.40 : 15,051.81 = 6,665.56 : x
  2. Step 2: Convert to fraction form
    10,907.40/15,051.81 = 6,665.56/x
  3. Step 3: Cross multiply
    10,907.40x = 15,051.81 × 6,665.56
  4. Step 4: Simplify right side
    10,907.40x = 100,328,692.54
  5. Step 5: Solve for x
    x = 100,328,692.54/10,907.40
  6. Step 6: Final answer
    x = 9,198.22

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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.