Home / 12,326.18-17,010.30-7,020.88

Finding the Fourth Proportional to 12,326.18, 17,010.30 and 7,020.88

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Solution

The fourth proportional to 12,326.18, 17,010.30 and 7,020.88 is: 9,688.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,326.18 : 17,010.30 = 7,020.88 : x
  2. Step 2: Convert to fraction form
    12,326.18/17,010.30 = 7,020.88/x
  3. Step 3: Cross multiply
    12,326.18x = 17,010.30 × 7,020.88
  4. Step 4: Simplify right side
    12,326.18x = 119,427,258.87
  5. Step 5: Solve for x
    x = 119,427,258.87/12,326.18
  6. Step 6: Final answer
    x = 9,688.91

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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.