Home / 15,027.03-20,736.45-8,312.27

Finding the Fourth Proportional to 15,027.03, 20,736.45 and 8,312.27

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Solution

The fourth proportional to 15,027.03, 20,736.45 and 8,312.27 is: 11,470.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,027.03 : 20,736.45 = 8,312.27 : x
  2. Step 2: Convert to fraction form
    15,027.03/20,736.45 = 8,312.27/x
  3. Step 3: Cross multiply
    15,027.03x = 20,736.45 × 8,312.27
  4. Step 4: Simplify right side
    15,027.03x = 172,366,867.56
  5. Step 5: Solve for x
    x = 172,366,867.56/15,027.03
  6. Step 6: Final answer
    x = 11,470.45

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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.