Home / 18,726.10-25,830.96-12,009.28

Finding the Fourth Proportional to 18,726.10, 25,830.96 and 12,009.28

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Solution

The fourth proportional to 18,726.10, 25,830.96 and 12,009.28 is: 16,565.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,726.10 : 25,830.96 = 12,009.28 : x
  2. Step 2: Convert to fraction form
    18,726.10/25,830.96 = 12,009.28/x
  3. Step 3: Cross multiply
    18,726.10x = 25,830.96 × 12,009.28
  4. Step 4: Simplify right side
    18,726.10x = 310,211,231.31
  5. Step 5: Solve for x
    x = 310,211,231.31/18,726.10
  6. Step 6: Final answer
    x = 16,565.71

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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.