Home / 11,907.05-16,423.88-7,651.40

Finding the Fourth Proportional to 11,907.05, 16,423.88 and 7,651.40

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Solution

The fourth proportional to 11,907.05, 16,423.88 and 7,651.40 is: 10,553.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.05 : 16,423.88 = 7,651.40 : x
  2. Step 2: Convert to fraction form
    11,907.05/16,423.88 = 7,651.40/x
  3. Step 3: Cross multiply
    11,907.05x = 16,423.88 × 7,651.40
  4. Step 4: Simplify right side
    11,907.05x = 125,665,555.06
  5. Step 5: Solve for x
    x = 125,665,555.06/11,907.05
  6. Step 6: Final answer
    x = 10,553.88

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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.