Home / 13,223.64-18,245.52-9,680.70

Finding the Fourth Proportional to 13,223.64, 18,245.52 and 9,680.70

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Solution

The fourth proportional to 13,223.64, 18,245.52 and 9,680.70 is: 13,357.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.64 : 18,245.52 = 9,680.70 : x
  2. Step 2: Convert to fraction form
    13,223.64/18,245.52 = 9,680.70/x
  3. Step 3: Cross multiply
    13,223.64x = 18,245.52 × 9,680.70
  4. Step 4: Simplify right side
    13,223.64x = 176,629,405.46
  5. Step 5: Solve for x
    x = 176,629,405.46/13,223.64
  6. Step 6: Final answer
    x = 13,357.09

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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.