Home / 11,182.30-15,431.75-6,402.22

Finding the Fourth Proportional to 11,182.30, 15,431.75 and 6,402.22

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Solution

The fourth proportional to 11,182.30, 15,431.75 and 6,402.22 is: 8,835.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,182.30 : 15,431.75 = 6,402.22 : x
  2. Step 2: Convert to fraction form
    11,182.30/15,431.75 = 6,402.22/x
  3. Step 3: Cross multiply
    11,182.30x = 15,431.75 × 6,402.22
  4. Step 4: Simplify right side
    11,182.30x = 98,797,458.49
  5. Step 5: Solve for x
    x = 98,797,458.49/11,182.30
  6. Step 6: Final answer
    x = 8,835.16

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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.