Home / 9,261.46-12,778.41-5,281.12

Finding the Fourth Proportional to 9,261.46, 12,778.41 and 5,281.12

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Solution

The fourth proportional to 9,261.46, 12,778.41 and 5,281.12 is: 7,286.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,261.46 : 12,778.41 = 5,281.12 : x
  2. Step 2: Convert to fraction form
    9,261.46/12,778.41 = 5,281.12/x
  3. Step 3: Cross multiply
    9,261.46x = 12,778.41 × 5,281.12
  4. Step 4: Simplify right side
    9,261.46x = 67,484,316.62
  5. Step 5: Solve for x
    x = 67,484,316.62/9,261.46
  6. Step 6: Final answer
    x = 7,286.57

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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.