Home / 15,425.88-21,287.85-9,052.56

Finding the Fourth Proportional to 15,425.88, 21,287.85 and 9,052.56

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Solution

The fourth proportional to 15,425.88, 21,287.85 and 9,052.56 is: 12,492.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,425.88 : 21,287.85 = 9,052.56 : x
  2. Step 2: Convert to fraction form
    15,425.88/21,287.85 = 9,052.56/x
  3. Step 3: Cross multiply
    15,425.88x = 21,287.85 × 9,052.56
  4. Step 4: Simplify right side
    15,425.88x = 192,709,539.40
  5. Step 5: Solve for x
    x = 192,709,539.40/15,425.88
  6. Step 6: Final answer
    x = 12,492.61

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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.