Home / 7,707.45-10,636.23-4,170.63

Finding the Fourth Proportional to 7,707.45, 10,636.23 and 4,170.63

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Solution

The fourth proportional to 7,707.45, 10,636.23 and 4,170.63 is: 5,755.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,707.45 : 10,636.23 = 4,170.63 : x
  2. Step 2: Convert to fraction form
    7,707.45/10,636.23 = 4,170.63/x
  3. Step 3: Cross multiply
    7,707.45x = 10,636.23 × 4,170.63
  4. Step 4: Simplify right side
    7,707.45x = 44,359,779.92
  5. Step 5: Solve for x
    x = 44,359,779.92/7,707.45
  6. Step 6: Final answer
    x = 5,755.44

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Half scale
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Double scale
Find fourth proportional to 7,708.45, 10,637.61 and 4,171.63
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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.