Home / 10,836.40-16,239-6,383.56

Finding the Fourth Proportional to 10,836.40, 16,239 and 6,383.56

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Solution

The fourth proportional to 10,836.40, 16,239 and 6,383.56 is: 9,566.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,836.40 : 16,239 = 6,383.56 : x
  2. Step 2: Convert to fraction form
    10,836.40/16,239 = 6,383.56/x
  3. Step 3: Cross multiply
    10,836.40x = 16,239 × 6,383.56
  4. Step 4: Simplify right side
    10,836.40x = 103,662,630.84
  5. Step 5: Solve for x
    x = 103,662,630.84/10,836.40
  6. Step 6: Final answer
    x = 9,566.15

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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.