Home / 17,620.32-26,430.48-7,240.80

Finding the Fourth Proportional to 17,620.32, 26,430.48 and 7,240.80

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Solution

The fourth proportional to 17,620.32, 26,430.48 and 7,240.80 is: 10,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,620.32 : 26,430.48 = 7,240.80 : x
  2. Step 2: Convert to fraction form
    17,620.32/26,430.48 = 7,240.80/x
  3. Step 3: Cross multiply
    17,620.32x = 26,430.48 × 7,240.80
  4. Step 4: Simplify right side
    17,620.32x = 191,377,819.58
  5. Step 5: Solve for x
    x = 191,377,819.58/17,620.32
  6. Step 6: Final answer
    x = 10,861.20

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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.