Home / 12,543.77-17,310.59-6,879.03

Finding the Fourth Proportional to 12,543.77, 17,310.59 and 6,879.03

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Solution

The fourth proportional to 12,543.77, 17,310.59 and 6,879.03 is: 9,493.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.77 : 17,310.59 = 6,879.03 : x
  2. Step 2: Convert to fraction form
    12,543.77/17,310.59 = 6,879.03/x
  3. Step 3: Cross multiply
    12,543.77x = 17,310.59 × 6,879.03
  4. Step 4: Simplify right side
    12,543.77x = 119,080,128.40
  5. Step 5: Solve for x
    x = 119,080,128.40/12,543.77
  6. Step 6: Final answer
    x = 9,493.17

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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.