Home / 13,345.54-20,030.86-6,776.44

Finding the Fourth Proportional to 13,345.54, 20,030.86 and 6,776.44

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Solution

The fourth proportional to 13,345.54, 20,030.86 and 6,776.44 is: 10,171.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.54 : 20,030.86 = 6,776.44 : x
  2. Step 2: Convert to fraction form
    13,345.54/20,030.86 = 6,776.44/x
  3. Step 3: Cross multiply
    13,345.54x = 20,030.86 × 6,776.44
  4. Step 4: Simplify right side
    13,345.54x = 135,737,920.94
  5. Step 5: Solve for x
    x = 135,737,920.94/13,345.54
  6. Step 6: Final answer
    x = 10,171.03

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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.