Home / 18,956.39-26,154.56-12,242.30

Finding the Fourth Proportional to 18,956.39, 26,154.56 and 12,242.30

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Solution

The fourth proportional to 18,956.39, 26,154.56 and 12,242.30 is: 16,890.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,956.39 : 26,154.56 = 12,242.30 : x
  2. Step 2: Convert to fraction form
    18,956.39/26,154.56 = 12,242.30/x
  3. Step 3: Cross multiply
    18,956.39x = 26,154.56 × 12,242.30
  4. Step 4: Simplify right side
    18,956.39x = 320,191,777.90
  5. Step 5: Solve for x
    x = 320,191,777.90/18,956.39
  6. Step 6: Final answer
    x = 16,890.97

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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.