Home / 15,539.54-21,451.72-9,164.04

Finding the Fourth Proportional to 15,539.54, 21,451.72 and 9,164.04

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Solution

The fourth proportional to 15,539.54, 21,451.72 and 9,164.04 is: 12,650.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.54 : 21,451.72 = 9,164.04 : x
  2. Step 2: Convert to fraction form
    15,539.54/21,451.72 = 9,164.04/x
  3. Step 3: Cross multiply
    15,539.54x = 21,451.72 × 9,164.04
  4. Step 4: Simplify right side
    15,539.54x = 196,584,420.15
  5. Step 5: Solve for x
    x = 196,584,420.15/15,539.54
  6. Step 6: Final answer
    x = 12,650.59

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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.