Home / 11,429.22-15,771.51-6,393.18

Finding the Fourth Proportional to 11,429.22, 15,771.51 and 6,393.18

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Solution

The fourth proportional to 11,429.22, 15,771.51 and 6,393.18 is: 8,822.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,429.22 : 15,771.51 = 6,393.18 : x
  2. Step 2: Convert to fraction form
    11,429.22/15,771.51 = 6,393.18/x
  3. Step 3: Cross multiply
    11,429.22x = 15,771.51 × 6,393.18
  4. Step 4: Simplify right side
    11,429.22x = 100,830,102.30
  5. Step 5: Solve for x
    x = 100,830,102.30/11,429.22
  6. Step 6: Final answer
    x = 8,822.13

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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.