Home / 13,359.90-18,442.35-8,326.64

Finding the Fourth Proportional to 13,359.90, 18,442.35 and 8,326.64

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Solution

The fourth proportional to 13,359.90, 18,442.35 and 8,326.64 is: 11,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.90 : 18,442.35 = 8,326.64 : x
  2. Step 2: Convert to fraction form
    13,359.90/18,442.35 = 8,326.64/x
  3. Step 3: Cross multiply
    13,359.90x = 18,442.35 × 8,326.64
  4. Step 4: Simplify right side
    13,359.90x = 153,562,716.99
  5. Step 5: Solve for x
    x = 153,562,716.99/13,359.90
  6. Step 6: Final answer
    x = 11,494.30

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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.