Home / 7,707.90-10,636.88-4,171.11

Finding the Fourth Proportional to 7,707.90, 10,636.88 and 4,171.11

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Solution

The fourth proportional to 7,707.90, 10,636.88 and 4,171.11 is: 5,756.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,707.90 : 10,636.88 = 4,171.11 : x
  2. Step 2: Convert to fraction form
    7,707.90/10,636.88 = 4,171.11/x
  3. Step 3: Cross multiply
    7,707.90x = 10,636.88 × 4,171.11
  4. Step 4: Simplify right side
    7,707.90x = 44,367,575.68
  5. Step 5: Solve for x
    x = 44,367,575.68/7,707.90
  6. Step 6: Final answer
    x = 5,756.12

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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.