Home / 14,289.30-19,719.21-8,001.68

Finding the Fourth Proportional to 14,289.30, 19,719.21 and 8,001.68

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Solution

The fourth proportional to 14,289.30, 19,719.21 and 8,001.68 is: 11,042.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,289.30 : 19,719.21 = 8,001.68 : x
  2. Step 2: Convert to fraction form
    14,289.30/19,719.21 = 8,001.68/x
  3. Step 3: Cross multiply
    14,289.30x = 19,719.21 × 8,001.68
  4. Step 4: Simplify right side
    14,289.30x = 157,786,709.68
  5. Step 5: Solve for x
    x = 157,786,709.68/14,289.30
  6. Step 6: Final answer
    x = 11,042.30

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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.