Home / 11,429.10-15,772.05-6,393.26

Finding the Fourth Proportional to 11,429.10, 15,772.05 and 6,393.26

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Solution

The fourth proportional to 11,429.10, 15,772.05 and 6,393.26 is: 8,822.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,429.10 : 15,772.05 = 6,393.26 : x
  2. Step 2: Convert to fraction form
    11,429.10/15,772.05 = 6,393.26/x
  3. Step 3: Cross multiply
    11,429.10x = 15,772.05 × 6,393.26
  4. Step 4: Simplify right side
    11,429.10x = 100,834,855.81
  5. Step 5: Solve for x
    x = 100,834,855.81/11,429.10
  6. Step 6: Final answer
    x = 8,822.64

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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.