Home / 15,613.56-21,546.88-8,539.83

Finding the Fourth Proportional to 15,613.56, 21,546.88 and 8,539.83

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Solution

The fourth proportional to 15,613.56, 21,546.88 and 8,539.83 is: 11,785.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,613.56 : 21,546.88 = 8,539.83 : x
  2. Step 2: Convert to fraction form
    15,613.56/21,546.88 = 8,539.83/x
  3. Step 3: Cross multiply
    15,613.56x = 21,546.88 × 8,539.83
  4. Step 4: Simplify right side
    15,613.56x = 184,006,692.23
  5. Step 5: Solve for x
    x = 184,006,692.23/15,613.56
  6. Step 6: Final answer
    x = 11,785.06

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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.