Home / 10,836.79-16,256.50-3,438.65

Finding the Fourth Proportional to 10,836.79, 16,256.50 and 3,438.65

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Solution

The fourth proportional to 10,836.79, 16,256.50 and 3,438.65 is: 5,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,836.79 : 16,256.50 = 3,438.65 : x
  2. Step 2: Convert to fraction form
    10,836.79/16,256.50 = 3,438.65/x
  3. Step 3: Cross multiply
    10,836.79x = 16,256.50 × 3,438.65
  4. Step 4: Simplify right side
    10,836.79x = 55,900,445.77
  5. Step 5: Solve for x
    x = 55,900,445.77/10,836.79
  6. Step 6: Final answer
    x = 5,158.40

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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.