Home / 9,259.46-12,777.94-5,280.56

Finding the Fourth Proportional to 9,259.46, 12,777.94 and 5,280.56

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Solution

The fourth proportional to 9,259.46, 12,777.94 and 5,280.56 is: 7,287.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,259.46 : 12,777.94 = 5,280.56 : x
  2. Step 2: Convert to fraction form
    9,259.46/12,777.94 = 5,280.56/x
  3. Step 3: Cross multiply
    9,259.46x = 12,777.94 × 5,280.56
  4. Step 4: Simplify right side
    9,259.46x = 67,474,678.85
  5. Step 5: Solve for x
    x = 67,474,678.85/9,259.46
  6. Step 6: Final answer
    x = 7,287.11

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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.