Home / 12,345.72-17,036.44-6,755.64

Finding the Fourth Proportional to 12,345.72, 17,036.44 and 6,755.64

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Solution

The fourth proportional to 12,345.72, 17,036.44 and 6,755.64 is: 9,322.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.72 : 17,036.44 = 6,755.64 : x
  2. Step 2: Convert to fraction form
    12,345.72/17,036.44 = 6,755.64/x
  3. Step 3: Cross multiply
    12,345.72x = 17,036.44 × 6,755.64
  4. Step 4: Simplify right side
    12,345.72x = 115,092,055.52
  5. Step 5: Solve for x
    x = 115,092,055.52/12,345.72
  6. Step 6: Final answer
    x = 9,322.43

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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.