Home / 8,423.65-12,628.53-3,358.35

Finding the Fourth Proportional to 8,423.65, 12,628.53 and 3,358.35

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Solution

The fourth proportional to 8,423.65, 12,628.53 and 3,358.35 is: 5,034.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.65 : 12,628.53 = 3,358.35 : x
  2. Step 2: Convert to fraction form
    8,423.65/12,628.53 = 3,358.35/x
  3. Step 3: Cross multiply
    8,423.65x = 12,628.53 × 3,358.35
  4. Step 4: Simplify right side
    8,423.65x = 42,411,023.73
  5. Step 5: Solve for x
    x = 42,411,023.73/8,423.65
  6. Step 6: Final answer
    x = 5,034.76

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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.