Home / 13,823.08-20,722.35-5,387.63

Finding the Fourth Proportional to 13,823.08, 20,722.35 and 5,387.63

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Solution

The fourth proportional to 13,823.08, 20,722.35 and 5,387.63 is: 8,076.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.08 : 20,722.35 = 5,387.63 : x
  2. Step 2: Convert to fraction form
    13,823.08/20,722.35 = 5,387.63/x
  3. Step 3: Cross multiply
    13,823.08x = 20,722.35 × 5,387.63
  4. Step 4: Simplify right side
    13,823.08x = 111,644,354.53
  5. Step 5: Solve for x
    x = 111,644,354.53/13,823.08
  6. Step 6: Final answer
    x = 8,076.66

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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.