Home / 14,097.28-21,147.12-3,709

Finding the Fourth Proportional to 14,097.28, 21,147.12 and 3,709

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Solution

The fourth proportional to 14,097.28, 21,147.12 and 3,709 is: 5,563.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,097.28 : 21,147.12 = 3,709 : x
  2. Step 2: Convert to fraction form
    14,097.28/21,147.12 = 3,709/x
  3. Step 3: Cross multiply
    14,097.28x = 21,147.12 × 3,709
  4. Step 4: Simplify right side
    14,097.28x = 78,434,668.08
  5. Step 5: Solve for x
    x = 78,434,668.08/14,097.28
  6. Step 6: Final answer
    x = 5,563.82

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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.