Home / 11,539.40-17,316.40-6,618.65

Finding the Fourth Proportional to 11,539.40, 17,316.40 and 6,618.65

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Solution

The fourth proportional to 11,539.40, 17,316.40 and 6,618.65 is: 9,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,539.40 : 17,316.40 = 6,618.65 : x
  2. Step 2: Convert to fraction form
    11,539.40/17,316.40 = 6,618.65/x
  3. Step 3: Cross multiply
    11,539.40x = 17,316.40 × 6,618.65
  4. Step 4: Simplify right side
    11,539.40x = 114,611,190.86
  5. Step 5: Solve for x
    x = 114,611,190.86/11,539.40
  6. Step 6: Final answer
    x = 9,932.16

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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.