Home / 15,051.76-20,771.60-8,337.50

Finding the Fourth Proportional to 15,051.76, 20,771.60 and 8,337.50

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Solution

The fourth proportional to 15,051.76, 20,771.60 and 8,337.50 is: 11,505.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,051.76 : 20,771.60 = 8,337.50 : x
  2. Step 2: Convert to fraction form
    15,051.76/20,771.60 = 8,337.50/x
  3. Step 3: Cross multiply
    15,051.76x = 20,771.60 × 8,337.50
  4. Step 4: Simplify right side
    15,051.76x = 173,183,215
  5. Step 5: Solve for x
    x = 173,183,215/15,051.76
  6. Step 6: Final answer
    x = 11,505.84

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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.