Home / 11,356.39-17,013.12-6,429.57

Finding the Fourth Proportional to 11,356.39, 17,013.12 and 6,429.57

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Solution

The fourth proportional to 11,356.39, 17,013.12 and 6,429.57 is: 9,632.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356.39 : 17,013.12 = 6,429.57 : x
  2. Step 2: Convert to fraction form
    11,356.39/17,013.12 = 6,429.57/x
  3. Step 3: Cross multiply
    11,356.39x = 17,013.12 × 6,429.57
  4. Step 4: Simplify right side
    11,356.39x = 109,387,045.96
  5. Step 5: Solve for x
    x = 109,387,045.96/11,356.39
  6. Step 6: Final answer
    x = 9,632.20

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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.