Home / 13,975.61-20,957.77-5,654.09

Finding the Fourth Proportional to 13,975.61, 20,957.77 and 5,654.09

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Solution

The fourth proportional to 13,975.61, 20,957.77 and 5,654.09 is: 8,478.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.61 : 20,957.77 = 5,654.09 : x
  2. Step 2: Convert to fraction form
    13,975.61/20,957.77 = 5,654.09/x
  3. Step 3: Cross multiply
    13,975.61x = 20,957.77 × 5,654.09
  4. Step 4: Simplify right side
    13,975.61x = 118,496,998.86
  5. Step 5: Solve for x
    x = 118,496,998.86/13,975.61
  6. Step 6: Final answer
    x = 8,478.85

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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.