Home / 7,707.86-10,636.84-4,171.06

Finding the Fourth Proportional to 7,707.86, 10,636.84 and 4,171.06

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Solution

The fourth proportional to 7,707.86, 10,636.84 and 4,171.06 is: 5,756.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,707.86 : 10,636.84 = 4,171.06 : x
  2. Step 2: Convert to fraction form
    7,707.86/10,636.84 = 4,171.06/x
  3. Step 3: Cross multiply
    7,707.86x = 10,636.84 × 4,171.06
  4. Step 4: Simplify right side
    7,707.86x = 44,366,897.85
  5. Step 5: Solve for x
    x = 44,366,897.85/7,707.86
  6. Step 6: Final answer
    x = 5,756.06

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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.