Home / 15,516.34-21,414.45-9,228.58

Finding the Fourth Proportional to 15,516.34, 21,414.45 and 9,228.58

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Solution

The fourth proportional to 15,516.34, 21,414.45 and 9,228.58 is: 12,736.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,516.34 : 21,414.45 = 9,228.58 : x
  2. Step 2: Convert to fraction form
    15,516.34/21,414.45 = 9,228.58/x
  3. Step 3: Cross multiply
    15,516.34x = 21,414.45 × 9,228.58
  4. Step 4: Simplify right side
    15,516.34x = 197,624,964.98
  5. Step 5: Solve for x
    x = 197,624,964.98/15,516.34
  6. Step 6: Final answer
    x = 12,736.57

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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.