Home / 11,438.80-17,135.56-8,962.08

Finding the Fourth Proportional to 11,438.80, 17,135.56 and 8,962.08

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Solution

The fourth proportional to 11,438.80, 17,135.56 and 8,962.08 is: 13,425.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,438.80 : 17,135.56 = 8,962.08 : x
  2. Step 2: Convert to fraction form
    11,438.80/17,135.56 = 8,962.08/x
  3. Step 3: Cross multiply
    11,438.80x = 17,135.56 × 8,962.08
  4. Step 4: Simplify right side
    11,438.80x = 153,570,259.56
  5. Step 5: Solve for x
    x = 153,570,259.56/11,438.80
  6. Step 6: Final answer
    x = 13,425.38

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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.