Home / 12,429.62-17,153.24-6,764.74

Finding the Fourth Proportional to 12,429.62, 17,153.24 and 6,764.74

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Solution

The fourth proportional to 12,429.62, 17,153.24 and 6,764.74 is: 9,335.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.62 : 17,153.24 = 6,764.74 : x
  2. Step 2: Convert to fraction form
    12,429.62/17,153.24 = 6,764.74/x
  3. Step 3: Cross multiply
    12,429.62x = 17,153.24 × 6,764.74
  4. Step 4: Simplify right side
    12,429.62x = 116,037,208.76
  5. Step 5: Solve for x
    x = 116,037,208.76/12,429.62
  6. Step 6: Final answer
    x = 9,335.54

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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.