Home / 18,001.38-26,955.90-12,447.06

Finding the Fourth Proportional to 18,001.38, 26,955.90 and 12,447.06

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Solution

The fourth proportional to 18,001.38, 26,955.90 and 12,447.06 is: 18,638.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,001.38 : 26,955.90 = 12,447.06 : x
  2. Step 2: Convert to fraction form
    18,001.38/26,955.90 = 12,447.06/x
  3. Step 3: Cross multiply
    18,001.38x = 26,955.90 × 12,447.06
  4. Step 4: Simplify right side
    18,001.38x = 335,521,704.65
  5. Step 5: Solve for x
    x = 335,521,704.65/18,001.38
  6. Step 6: Final answer
    x = 18,638.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.