Home / 9,429.18-13,011.64-5,179.41

Finding the Fourth Proportional to 9,429.18, 13,011.64 and 5,179.41

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Solution

The fourth proportional to 9,429.18, 13,011.64 and 5,179.41 is: 7,147.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,429.18 : 13,011.64 = 5,179.41 : x
  2. Step 2: Convert to fraction form
    9,429.18/13,011.64 = 5,179.41/x
  3. Step 3: Cross multiply
    9,429.18x = 13,011.64 × 5,179.41
  4. Step 4: Simplify right side
    9,429.18x = 67,392,605.38
  5. Step 5: Solve for x
    x = 67,392,605.38/9,429.18
  6. Step 6: Final answer
    x = 7,147.24

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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.