Home / 14,109.29-21,164.61-11,639.53

Finding the Fourth Proportional to 14,109.29, 21,164.61 and 11,639.53

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Solution

The fourth proportional to 14,109.29, 21,164.61 and 11,639.53 is: 17,459.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.29 : 21,164.61 = 11,639.53 : x
  2. Step 2: Convert to fraction form
    14,109.29/21,164.61 = 11,639.53/x
  3. Step 3: Cross multiply
    14,109.29x = 21,164.61 × 11,639.53
  4. Step 4: Simplify right side
    14,109.29x = 246,346,113.03
  5. Step 5: Solve for x
    x = 246,346,113.03/14,109.29
  6. Step 6: Final answer
    x = 17,459.85

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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.