Home / 13,317.52-18,372.48-8,009.20

Finding the Fourth Proportional to 13,317.52, 18,372.48 and 8,009.20

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Solution

The fourth proportional to 13,317.52, 18,372.48 and 8,009.20 is: 11,049.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.52 : 18,372.48 = 8,009.20 : x
  2. Step 2: Convert to fraction form
    13,317.52/18,372.48 = 8,009.20/x
  3. Step 3: Cross multiply
    13,317.52x = 18,372.48 × 8,009.20
  4. Step 4: Simplify right side
    13,317.52x = 147,148,866.82
  5. Step 5: Solve for x
    x = 147,148,866.82/13,317.52
  6. Step 6: Final answer
    x = 11,049.27

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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.