Home / 11,639.71-17,459.57-9,579.39

Finding the Fourth Proportional to 11,639.71, 17,459.57 and 9,579.39

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Solution

The fourth proportional to 11,639.71, 17,459.57 and 9,579.39 is: 14,369.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.71 : 17,459.57 = 9,579.39 : x
  2. Step 2: Convert to fraction form
    11,639.71/17,459.57 = 9,579.39/x
  3. Step 3: Cross multiply
    11,639.71x = 17,459.57 × 9,579.39
  4. Step 4: Simplify right side
    11,639.71x = 167,252,030.26
  5. Step 5: Solve for x
    x = 167,252,030.26/11,639.71
  6. Step 6: Final answer
    x = 14,369.09

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Similar ratio
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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.