Home / 12,522.38-18,783.58-5,125.56

Finding the Fourth Proportional to 12,522.38, 18,783.58 and 5,125.56

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Solution

The fourth proportional to 12,522.38, 18,783.58 and 5,125.56 is: 7,688.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,522.38 : 18,783.58 = 5,125.56 : x
  2. Step 2: Convert to fraction form
    12,522.38/18,783.58 = 5,125.56/x
  3. Step 3: Cross multiply
    12,522.38x = 18,783.58 × 5,125.56
  4. Step 4: Simplify right side
    12,522.38x = 96,276,366.30
  5. Step 5: Solve for x
    x = 96,276,366.30/12,522.38
  6. Step 6: Final answer
    x = 7,688.34

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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.