Home / 12,435.77-17,161.80-7,057.91

Finding the Fourth Proportional to 12,435.77, 17,161.80 and 7,057.91

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Solution

The fourth proportional to 12,435.77, 17,161.80 and 7,057.91 is: 9,740.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.77 : 17,161.80 = 7,057.91 : x
  2. Step 2: Convert to fraction form
    12,435.77/17,161.80 = 7,057.91/x
  3. Step 3: Cross multiply
    12,435.77x = 17,161.80 × 7,057.91
  4. Step 4: Simplify right side
    12,435.77x = 121,126,439.84
  5. Step 5: Solve for x
    x = 121,126,439.84/12,435.77
  6. Step 6: Final answer
    x = 9,740.16

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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.