Home / 18,642.90-25,726.42-10,258.86

Finding the Fourth Proportional to 18,642.90, 25,726.42 and 10,258.86

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Solution

The fourth proportional to 18,642.90, 25,726.42 and 10,258.86 is: 14,156.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,642.90 : 25,726.42 = 10,258.86 : x
  2. Step 2: Convert to fraction form
    18,642.90/25,726.42 = 10,258.86/x
  3. Step 3: Cross multiply
    18,642.90x = 25,726.42 × 10,258.86
  4. Step 4: Simplify right side
    18,642.90x = 263,923,741.08
  5. Step 5: Solve for x
    x = 263,923,741.08/18,642.90
  6. Step 6: Final answer
    x = 14,156.80

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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.