Home / 13,281.58-18,326.08-8,247.03

Finding the Fourth Proportional to 13,281.58, 18,326.08 and 8,247.03

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Solution

The fourth proportional to 13,281.58, 18,326.08 and 8,247.03 is: 11,379.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281.58 : 18,326.08 = 8,247.03 : x
  2. Step 2: Convert to fraction form
    13,281.58/18,326.08 = 8,247.03/x
  3. Step 3: Cross multiply
    13,281.58x = 18,326.08 × 8,247.03
  4. Step 4: Simplify right side
    13,281.58x = 151,135,598.68
  5. Step 5: Solve for x
    x = 151,135,598.68/13,281.58
  6. Step 6: Final answer
    x = 11,379.34

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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.