Home / 7,743.66-10,666.71-6,247.39

Finding the Fourth Proportional to 7,743.66, 10,666.71 and 6,247.39

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Solution

The fourth proportional to 7,743.66, 10,666.71 and 6,247.39 is: 8,605.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.66 : 10,666.71 = 6,247.39 : x
  2. Step 2: Convert to fraction form
    7,743.66/10,666.71 = 6,247.39/x
  3. Step 3: Cross multiply
    7,743.66x = 10,666.71 × 6,247.39
  4. Step 4: Simplify right side
    7,743.66x = 66,639,097.39
  5. Step 5: Solve for x
    x = 66,639,097.39/7,743.66
  6. Step 6: Final answer
    x = 8,605.63

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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.