Home / 17,145.60-25,718.40-11,240.70

Finding the Fourth Proportional to 17,145.60, 25,718.40 and 11,240.70

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Solution

The fourth proportional to 17,145.60, 25,718.40 and 11,240.70 is: 16,861.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,145.60 : 25,718.40 = 11,240.70 : x
  2. Step 2: Convert to fraction form
    17,145.60/25,718.40 = 11,240.70/x
  3. Step 3: Cross multiply
    17,145.60x = 25,718.40 × 11,240.70
  4. Step 4: Simplify right side
    17,145.60x = 289,092,818.88
  5. Step 5: Solve for x
    x = 289,092,818.88/17,145.60
  6. Step 6: Final answer
    x = 16,861.05

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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.