Home / 14,478.32-21,753.78-9,215.60

Finding the Fourth Proportional to 14,478.32, 21,753.78 and 9,215.60

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Solution

The fourth proportional to 14,478.32, 21,753.78 and 9,215.60 is: 13,846.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,478.32 : 21,753.78 = 9,215.60 : x
  2. Step 2: Convert to fraction form
    14,478.32/21,753.78 = 9,215.60/x
  3. Step 3: Cross multiply
    14,478.32x = 21,753.78 × 9,215.60
  4. Step 4: Simplify right side
    14,478.32x = 200,474,134.97
  5. Step 5: Solve for x
    x = 200,474,134.97/14,478.32
  6. Step 6: Final answer
    x = 13,846.51

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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.