Home / 13,218.24-19,801.20-9,935.04

Finding the Fourth Proportional to 13,218.24, 19,801.20 and 9,935.04

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Solution

The fourth proportional to 13,218.24, 19,801.20 and 9,935.04 is: 14,882.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.24 : 19,801.20 = 9,935.04 : x
  2. Step 2: Convert to fraction form
    13,218.24/19,801.20 = 9,935.04/x
  3. Step 3: Cross multiply
    13,218.24x = 19,801.20 × 9,935.04
  4. Step 4: Simplify right side
    13,218.24x = 196,725,714.05
  5. Step 5: Solve for x
    x = 196,725,714.05/13,218.24
  6. Step 6: Final answer
    x = 14,882.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.