Home / 6,631.47-9,986.69-5,776.11

Finding the Fourth Proportional to 6,631.47, 9,986.69 and 5,776.11

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Solution

The fourth proportional to 6,631.47, 9,986.69 and 5,776.11 is: 8,698.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.47 : 9,986.69 = 5,776.11 : x
  2. Step 2: Convert to fraction form
    6,631.47/9,986.69 = 5,776.11/x
  3. Step 3: Cross multiply
    6,631.47x = 9,986.69 × 5,776.11
  4. Step 4: Simplify right side
    6,631.47x = 57,684,234.42
  5. Step 5: Solve for x
    x = 57,684,234.42/6,631.47
  6. Step 6: Final answer
    x = 8,698.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.