Home / 17,838.72-26,758.34-8,479.70

Finding the Fourth Proportional to 17,838.72, 26,758.34 and 8,479.70

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Solution

The fourth proportional to 17,838.72, 26,758.34 and 8,479.70 is: 12,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,838.72 : 26,758.34 = 8,479.70 : x
  2. Step 2: Convert to fraction form
    17,838.72/26,758.34 = 8,479.70/x
  3. Step 3: Cross multiply
    17,838.72x = 26,758.34 × 8,479.70
  4. Step 4: Simplify right side
    17,838.72x = 226,902,695.70
  5. Step 5: Solve for x
    x = 226,902,695.70/17,838.72
  6. Step 6: Final answer
    x = 12,719.67

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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.