Home / 11,566.40-15,961.61-6,261.21

Finding the Fourth Proportional to 11,566.40, 15,961.61 and 6,261.21

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Solution

The fourth proportional to 11,566.40, 15,961.61 and 6,261.21 is: 8,640.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,566.40 : 15,961.61 = 6,261.21 : x
  2. Step 2: Convert to fraction form
    11,566.40/15,961.61 = 6,261.21/x
  3. Step 3: Cross multiply
    11,566.40x = 15,961.61 × 6,261.21
  4. Step 4: Simplify right side
    11,566.40x = 99,938,992.15
  5. Step 5: Solve for x
    x = 99,938,992.15/11,566.40
  6. Step 6: Final answer
    x = 8,640.46

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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.