Home / 13,397.76-18,458.88-12,205.44

Finding the Fourth Proportional to 13,397.76, 18,458.88 and 12,205.44

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Solution

The fourth proportional to 13,397.76, 18,458.88 and 12,205.44 is: 16,816.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397.76 : 18,458.88 = 12,205.44 : x
  2. Step 2: Convert to fraction form
    13,397.76/18,458.88 = 12,205.44/x
  3. Step 3: Cross multiply
    13,397.76x = 18,458.88 × 12,205.44
  4. Step 4: Simplify right side
    13,397.76x = 225,298,752.31
  5. Step 5: Solve for x
    x = 225,298,752.31/13,397.76
  6. Step 6: Final answer
    x = 16,816.15

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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.