Home / 8,530.80-12,796.35-5,326.08

Finding the Fourth Proportional to 8,530.80, 12,796.35 and 5,326.08

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Solution

The fourth proportional to 8,530.80, 12,796.35 and 5,326.08 is: 7,989.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.80 : 12,796.35 = 5,326.08 : x
  2. Step 2: Convert to fraction form
    8,530.80/12,796.35 = 5,326.08/x
  3. Step 3: Cross multiply
    8,530.80x = 12,796.35 × 5,326.08
  4. Step 4: Simplify right side
    8,530.80x = 68,154,383.81
  5. Step 5: Solve for x
    x = 68,154,383.81/8,530.80
  6. Step 6: Final answer
    x = 7,989.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.