Home / 18,905.66-26,087.15-12,522.35

Finding the Fourth Proportional to 18,905.66, 26,087.15 and 12,522.35

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Solution

The fourth proportional to 18,905.66, 26,087.15 and 12,522.35 is: 17,279.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.66 : 26,087.15 = 12,522.35 : x
  2. Step 2: Convert to fraction form
    18,905.66/26,087.15 = 12,522.35/x
  3. Step 3: Cross multiply
    18,905.66x = 26,087.15 × 12,522.35
  4. Step 4: Simplify right side
    18,905.66x = 326,672,229.76
  5. Step 5: Solve for x
    x = 326,672,229.76/18,905.66
  6. Step 6: Final answer
    x = 17,279.07

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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.