Home / 18,909.15-26,093.03-11,146.72

Finding the Fourth Proportional to 18,909.15, 26,093.03 and 11,146.72

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Solution

The fourth proportional to 18,909.15, 26,093.03 and 11,146.72 is: 15,381.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909.15 : 26,093.03 = 11,146.72 : x
  2. Step 2: Convert to fraction form
    18,909.15/26,093.03 = 11,146.72/x
  3. Step 3: Cross multiply
    18,909.15x = 26,093.03 × 11,146.72
  4. Step 4: Simplify right side
    18,909.15x = 290,851,643.63
  5. Step 5: Solve for x
    x = 290,851,643.63/18,909.15
  6. Step 6: Final answer
    x = 15,381.53

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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.