Home / 15,051.99-20,771.73-8,337.63

Finding the Fourth Proportional to 15,051.99, 20,771.73 and 8,337.63

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Solution

The fourth proportional to 15,051.99, 20,771.73 and 8,337.63 is: 11,505.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,051.99 : 20,771.73 = 8,337.63 : x
  2. Step 2: Convert to fraction form
    15,051.99/20,771.73 = 8,337.63/x
  3. Step 3: Cross multiply
    15,051.99x = 20,771.73 × 8,337.63
  4. Step 4: Simplify right side
    15,051.99x = 173,186,999.20
  5. Step 5: Solve for x
    x = 173,186,999.20/15,051.99
  6. Step 6: Final answer
    x = 11,505.92

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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.