Home / 10,344.40-15,522.12-9,786.88

Finding the Fourth Proportional to 10,344.40, 15,522.12 and 9,786.88

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Solution

The fourth proportional to 10,344.40, 15,522.12 and 9,786.88 is: 14,685.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,344.40 : 15,522.12 = 9,786.88 : x
  2. Step 2: Convert to fraction form
    10,344.40/15,522.12 = 9,786.88/x
  3. Step 3: Cross multiply
    10,344.40x = 15,522.12 × 9,786.88
  4. Step 4: Simplify right side
    10,344.40x = 151,913,125.79
  5. Step 5: Solve for x
    x = 151,913,125.79/10,344.40
  6. Step 6: Final answer
    x = 14,685.54

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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.