Home / 13,226.40-19,836.09-4,459.50

Finding the Fourth Proportional to 13,226.40, 19,836.09 and 4,459.50

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Solution

The fourth proportional to 13,226.40, 19,836.09 and 4,459.50 is: 6,688.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.40 : 19,836.09 = 4,459.50 : x
  2. Step 2: Convert to fraction form
    13,226.40/19,836.09 = 4,459.50/x
  3. Step 3: Cross multiply
    13,226.40x = 19,836.09 × 4,459.50
  4. Step 4: Simplify right side
    13,226.40x = 88,459,043.36
  5. Step 5: Solve for x
    x = 88,459,043.36/13,226.40
  6. Step 6: Final answer
    x = 6,688.07

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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.