Home / 11,345.06-15,654.97-6,869.51

Finding the Fourth Proportional to 11,345.06, 15,654.97 and 6,869.51

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Solution

The fourth proportional to 11,345.06, 15,654.97 and 6,869.51 is: 9,479.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.06 : 15,654.97 = 6,869.51 : x
  2. Step 2: Convert to fraction form
    11,345.06/15,654.97 = 6,869.51/x
  3. Step 3: Cross multiply
    11,345.06x = 15,654.97 × 6,869.51
  4. Step 4: Simplify right side
    11,345.06x = 107,541,961.98
  5. Step 5: Solve for x
    x = 107,541,961.98/11,345.06
  6. Step 6: Final answer
    x = 9,479.19

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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.