Home / 13,876.97-20,815.38-6,477.30

Finding the Fourth Proportional to 13,876.97, 20,815.38 and 6,477.30

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Solution

The fourth proportional to 13,876.97, 20,815.38 and 6,477.30 is: 9,715.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,876.97 : 20,815.38 = 6,477.30 : x
  2. Step 2: Convert to fraction form
    13,876.97/20,815.38 = 6,477.30/x
  3. Step 3: Cross multiply
    13,876.97x = 20,815.38 × 6,477.30
  4. Step 4: Simplify right side
    13,876.97x = 134,827,460.87
  5. Step 5: Solve for x
    x = 134,827,460.87/13,876.97
  6. Step 6: Final answer
    x = 9,715.92

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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.