Home / 8,129.53-11,219.16-4,772.49

Finding the Fourth Proportional to 8,129.53, 11,219.16 and 4,772.49

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Solution

The fourth proportional to 8,129.53, 11,219.16 and 4,772.49 is: 6,586.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.53 : 11,219.16 = 4,772.49 : x
  2. Step 2: Convert to fraction form
    8,129.53/11,219.16 = 4,772.49/x
  3. Step 3: Cross multiply
    8,129.53x = 11,219.16 × 4,772.49
  4. Step 4: Simplify right side
    8,129.53x = 53,543,328.91
  5. Step 5: Solve for x
    x = 53,543,328.91/8,129.53
  6. Step 6: Final answer
    x = 6,586.28

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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.