Home / 12,435.45-17,160.86-7,057.93

Finding the Fourth Proportional to 12,435.45, 17,160.86 and 7,057.93

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Solution

The fourth proportional to 12,435.45, 17,160.86 and 7,057.93 is: 9,739.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.45 : 17,160.86 = 7,057.93 : x
  2. Step 2: Convert to fraction form
    12,435.45/17,160.86 = 7,057.93/x
  3. Step 3: Cross multiply
    12,435.45x = 17,160.86 × 7,057.93
  4. Step 4: Simplify right side
    12,435.45x = 121,120,148.62
  5. Step 5: Solve for x
    x = 121,120,148.62/12,435.45
  6. Step 6: Final answer
    x = 9,739.91

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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.