Home / 11,429.69-15,772.23-6,393.04

Finding the Fourth Proportional to 11,429.69, 15,772.23 and 6,393.04

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Solution

The fourth proportional to 11,429.69, 15,772.23 and 6,393.04 is: 8,821.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,429.69 : 15,772.23 = 6,393.04 : x
  2. Step 2: Convert to fraction form
    11,429.69/15,772.23 = 6,393.04/x
  3. Step 3: Cross multiply
    11,429.69x = 15,772.23 × 6,393.04
  4. Step 4: Simplify right side
    11,429.69x = 100,832,386.45
  5. Step 5: Solve for x
    x = 100,832,386.45/11,429.69
  6. Step 6: Final answer
    x = 8,821.97

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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.