Home / 15,539.52-21,441.58-9,168.12

Finding the Fourth Proportional to 15,539.52, 21,441.58 and 9,168.12

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Solution

The fourth proportional to 15,539.52, 21,441.58 and 9,168.12 is: 12,650.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.52 : 21,441.58 = 9,168.12 : x
  2. Step 2: Convert to fraction form
    15,539.52/21,441.58 = 9,168.12/x
  3. Step 3: Cross multiply
    15,539.52x = 21,441.58 × 9,168.12
  4. Step 4: Simplify right side
    15,539.52x = 196,578,978.43
  5. Step 5: Solve for x
    x = 196,578,978.43/15,539.52
  6. Step 6: Final answer
    x = 12,650.26

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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.