Home / 12,521.34-18,783.85-3,756.94

Finding the Fourth Proportional to 12,521.34, 18,783.85 and 3,756.94

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Solution

The fourth proportional to 12,521.34, 18,783.85 and 3,756.94 is: 5,635.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.34 : 18,783.85 = 3,756.94 : x
  2. Step 2: Convert to fraction form
    12,521.34/18,783.85 = 3,756.94/x
  3. Step 3: Cross multiply
    12,521.34x = 18,783.85 × 3,756.94
  4. Step 4: Simplify right side
    12,521.34x = 70,569,741.07
  5. Step 5: Solve for x
    x = 70,569,741.07/12,521.34
  6. Step 6: Final answer
    x = 5,635.96

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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.