Home / 12,821.52-17,693.96-7,232.48

Finding the Fourth Proportional to 12,821.52, 17,693.96 and 7,232.48

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Solution

The fourth proportional to 12,821.52, 17,693.96 and 7,232.48 is: 9,980.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821.52 : 17,693.96 = 7,232.48 : x
  2. Step 2: Convert to fraction form
    12,821.52/17,693.96 = 7,232.48/x
  3. Step 3: Cross multiply
    12,821.52x = 17,693.96 × 7,232.48
  4. Step 4: Simplify right side
    12,821.52x = 127,971,211.82
  5. Step 5: Solve for x
    x = 127,971,211.82/12,821.52
  6. Step 6: Final answer
    x = 9,980.97

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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.