Home / 14,128.24-21,207.12-10,434.64

Finding the Fourth Proportional to 14,128.24, 21,207.12 and 10,434.64

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Solution

The fourth proportional to 14,128.24, 21,207.12 and 10,434.64 is: 15,662.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,128.24 : 21,207.12 = 10,434.64 : x
  2. Step 2: Convert to fraction form
    14,128.24/21,207.12 = 10,434.64/x
  3. Step 3: Cross multiply
    14,128.24x = 21,207.12 × 10,434.64
  4. Step 4: Simplify right side
    14,128.24x = 221,288,662.64
  5. Step 5: Solve for x
    x = 221,288,662.64/14,128.24
  6. Step 6: Final answer
    x = 15,662.86

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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.