Home / 8,318.91-11,477.34-5,487.69

Finding the Fourth Proportional to 8,318.91, 11,477.34 and 5,487.69

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Solution

The fourth proportional to 8,318.91, 11,477.34 and 5,487.69 is: 7,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.91 : 11,477.34 = 5,487.69 : x
  2. Step 2: Convert to fraction form
    8,318.91/11,477.34 = 5,487.69/x
  3. Step 3: Cross multiply
    8,318.91x = 11,477.34 × 5,487.69
  4. Step 4: Simplify right side
    8,318.91x = 62,984,126.98
  5. Step 5: Solve for x
    x = 62,984,126.98/8,318.91
  6. Step 6: Final answer
    x = 7,571.20

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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.