Home / 14,145.30-19,520.19-9,110.70

Finding the Fourth Proportional to 14,145.30, 19,520.19 and 9,110.70

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Solution

The fourth proportional to 14,145.30, 19,520.19 and 9,110.70 is: 12,572.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.30 : 19,520.19 = 9,110.70 : x
  2. Step 2: Convert to fraction form
    14,145.30/19,520.19 = 9,110.70/x
  3. Step 3: Cross multiply
    14,145.30x = 19,520.19 × 9,110.70
  4. Step 4: Simplify right side
    14,145.30x = 177,842,595.03
  5. Step 5: Solve for x
    x = 177,842,595.03/14,145.30
  6. Step 6: Final answer
    x = 12,572.56

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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.