Home / 13,528.34-18,674.85-8,224.85

Finding the Fourth Proportional to 13,528.34, 18,674.85 and 8,224.85

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Solution

The fourth proportional to 13,528.34, 18,674.85 and 8,224.85 is: 11,353.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.34 : 18,674.85 = 8,224.85 : x
  2. Step 2: Convert to fraction form
    13,528.34/18,674.85 = 8,224.85/x
  3. Step 3: Cross multiply
    13,528.34x = 18,674.85 × 8,224.85
  4. Step 4: Simplify right side
    13,528.34x = 153,597,840.02
  5. Step 5: Solve for x
    x = 153,597,840.02/13,528.34
  6. Step 6: Final answer
    x = 11,353.78

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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.