Home / 13,296.52-18,349.41-7,990.30

Finding the Fourth Proportional to 13,296.52, 18,349.41 and 7,990.30

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Solution

The fourth proportional to 13,296.52, 18,349.41 and 7,990.30 is: 11,026.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,296.52 : 18,349.41 = 7,990.30 : x
  2. Step 2: Convert to fraction form
    13,296.52/18,349.41 = 7,990.30/x
  3. Step 3: Cross multiply
    13,296.52x = 18,349.41 × 7,990.30
  4. Step 4: Simplify right side
    13,296.52x = 146,617,290.72
  5. Step 5: Solve for x
    x = 146,617,290.72/13,296.52
  6. Step 6: Final answer
    x = 11,026.74

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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.