Home / 14,238.72-21,358.08-4,377.78

Finding the Fourth Proportional to 14,238.72, 21,358.08 and 4,377.78

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Solution

The fourth proportional to 14,238.72, 21,358.08 and 4,377.78 is: 6,566.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,238.72 : 21,358.08 = 4,377.78 : x
  2. Step 2: Convert to fraction form
    14,238.72/21,358.08 = 4,377.78/x
  3. Step 3: Cross multiply
    14,238.72x = 21,358.08 × 4,377.78
  4. Step 4: Simplify right side
    14,238.72x = 93,500,975.46
  5. Step 5: Solve for x
    x = 93,500,975.46/14,238.72
  6. Step 6: Final answer
    x = 6,566.67

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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.