Home / 13,500.45-18,625.65-8,464.88

Finding the Fourth Proportional to 13,500.45, 18,625.65 and 8,464.88

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Solution

The fourth proportional to 13,500.45, 18,625.65 and 8,464.88 is: 11,678.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,500.45 : 18,625.65 = 8,464.88 : x
  2. Step 2: Convert to fraction form
    13,500.45/18,625.65 = 8,464.88/x
  3. Step 3: Cross multiply
    13,500.45x = 18,625.65 × 8,464.88
  4. Step 4: Simplify right side
    13,500.45x = 157,663,799.04
  5. Step 5: Solve for x
    x = 157,663,799.04/13,500.45
  6. Step 6: Final answer
    x = 11,678.41

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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.