Home / 11,865.42-16,374.24-7,149.96

Finding the Fourth Proportional to 11,865.42, 16,374.24 and 7,149.96

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Solution

The fourth proportional to 11,865.42, 16,374.24 and 7,149.96 is: 9,866.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,865.42 : 16,374.24 = 7,149.96 : x
  2. Step 2: Convert to fraction form
    11,865.42/16,374.24 = 7,149.96/x
  3. Step 3: Cross multiply
    11,865.42x = 16,374.24 × 7,149.96
  4. Step 4: Simplify right side
    11,865.42x = 117,075,161.03
  5. Step 5: Solve for x
    x = 117,075,161.03/11,865.42
  6. Step 6: Final answer
    x = 9,866.92

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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.