Home / 12,135.05-16,746.36-6,829.91

Finding the Fourth Proportional to 12,135.05, 16,746.36 and 6,829.91

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Solution

The fourth proportional to 12,135.05, 16,746.36 and 6,829.91 is: 9,425.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.05 : 16,746.36 = 6,829.91 : x
  2. Step 2: Convert to fraction form
    12,135.05/16,746.36 = 6,829.91/x
  3. Step 3: Cross multiply
    12,135.05x = 16,746.36 × 6,829.91
  4. Step 4: Simplify right side
    12,135.05x = 114,376,131.63
  5. Step 5: Solve for x
    x = 114,376,131.63/12,135.05
  6. Step 6: Final answer
    x = 9,425.27

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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.