Home / 18,902.60-26,085.10-10,288.42

Finding the Fourth Proportional to 18,902.60, 26,085.10 and 10,288.42

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Solution

The fourth proportional to 18,902.60, 26,085.10 and 10,288.42 is: 14,197.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,902.60 : 26,085.10 = 10,288.42 : x
  2. Step 2: Convert to fraction form
    18,902.60/26,085.10 = 10,288.42/x
  3. Step 3: Cross multiply
    18,902.60x = 26,085.10 × 10,288.42
  4. Step 4: Simplify right side
    18,902.60x = 268,374,464.54
  5. Step 5: Solve for x
    x = 268,374,464.54/18,902.60
  6. Step 6: Final answer
    x = 14,197.75

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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.