Home / 18,952.08-26,164.92-12,587.28

Finding the Fourth Proportional to 18,952.08, 26,164.92 and 12,587.28

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Solution

The fourth proportional to 18,952.08, 26,164.92 and 12,587.28 is: 17,377.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,952.08 : 26,164.92 = 12,587.28 : x
  2. Step 2: Convert to fraction form
    18,952.08/26,164.92 = 12,587.28/x
  3. Step 3: Cross multiply
    18,952.08x = 26,164.92 × 12,587.28
  4. Step 4: Simplify right side
    18,952.08x = 329,345,174.22
  5. Step 5: Solve for x
    x = 329,345,174.22/18,952.08
  6. Step 6: Final answer
    x = 17,377.79

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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.