Home / 15,051.52-20,771.27-8,337.28

Finding the Fourth Proportional to 15,051.52, 20,771.27 and 8,337.28

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Solution

The fourth proportional to 15,051.52, 20,771.27 and 8,337.28 is: 11,505.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,051.52 : 20,771.27 = 8,337.28 : x
  2. Step 2: Convert to fraction form
    15,051.52/20,771.27 = 8,337.28/x
  3. Step 3: Cross multiply
    15,051.52x = 20,771.27 × 8,337.28
  4. Step 4: Simplify right side
    15,051.52x = 173,175,893.95
  5. Step 5: Solve for x
    x = 173,175,893.95/15,051.52
  6. Step 6: Final answer
    x = 11,505.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.