Home / 12,416.28-17,135.52-6,828.36

Finding the Fourth Proportional to 12,416.28, 17,135.52 and 6,828.36

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Solution

The fourth proportional to 12,416.28, 17,135.52 and 6,828.36 is: 9,423.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,416.28 : 17,135.52 = 6,828.36 : x
  2. Step 2: Convert to fraction form
    12,416.28/17,135.52 = 6,828.36/x
  3. Step 3: Cross multiply
    12,416.28x = 17,135.52 × 6,828.36
  4. Step 4: Simplify right side
    12,416.28x = 117,007,499.35
  5. Step 5: Solve for x
    x = 117,007,499.35/12,416.28
  6. Step 6: Final answer
    x = 9,423.72

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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.