Home / 11,485.89-17,228.84-7,589.39

Finding the Fourth Proportional to 11,485.89, 17,228.84 and 7,589.39

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Solution

The fourth proportional to 11,485.89, 17,228.84 and 7,589.39 is: 11,384.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,485.89 : 17,228.84 = 7,589.39 : x
  2. Step 2: Convert to fraction form
    11,485.89/17,228.84 = 7,589.39/x
  3. Step 3: Cross multiply
    11,485.89x = 17,228.84 × 7,589.39
  4. Step 4: Simplify right side
    11,485.89x = 130,756,261.92
  5. Step 5: Solve for x
    x = 130,756,261.92/11,485.89
  6. Step 6: Final answer
    x = 11,384.08

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Double scale
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Similar ratio
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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.