Home / 13,828.05-20,746.23-6,436.89

Finding the Fourth Proportional to 13,828.05, 20,746.23 and 6,436.89

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Solution

The fourth proportional to 13,828.05, 20,746.23 and 6,436.89 is: 9,657.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828.05 : 20,746.23 = 6,436.89 : x
  2. Step 2: Convert to fraction form
    13,828.05/20,746.23 = 6,436.89/x
  3. Step 3: Cross multiply
    13,828.05x = 20,746.23 × 6,436.89
  4. Step 4: Simplify right side
    13,828.05x = 133,541,200.42
  5. Step 5: Solve for x
    x = 133,541,200.42/13,828.05
  6. Step 6: Final answer
    x = 9,657.27

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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.