Home / 18,747.42-25,872.21-10,789.67

Finding the Fourth Proportional to 18,747.42, 25,872.21 and 10,789.67

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Solution

The fourth proportional to 18,747.42, 25,872.21 and 10,789.67 is: 14,890.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.42 : 25,872.21 = 10,789.67 : x
  2. Step 2: Convert to fraction form
    18,747.42/25,872.21 = 10,789.67/x
  3. Step 3: Cross multiply
    18,747.42x = 25,872.21 × 10,789.67
  4. Step 4: Simplify right side
    18,747.42x = 279,152,478.71
  5. Step 5: Solve for x
    x = 279,152,478.71/18,747.42
  6. Step 6: Final answer
    x = 14,890.18

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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.