Home / 11,182.21-15,430.67-6,146.30

Finding the Fourth Proportional to 11,182.21, 15,430.67 and 6,146.30

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Solution

The fourth proportional to 11,182.21, 15,430.67 and 6,146.30 is: 8,481.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,182.21 : 15,430.67 = 6,146.30 : x
  2. Step 2: Convert to fraction form
    11,182.21/15,430.67 = 6,146.30/x
  3. Step 3: Cross multiply
    11,182.21x = 15,430.67 × 6,146.30
  4. Step 4: Simplify right side
    11,182.21x = 94,841,557.91
  5. Step 5: Solve for x
    x = 94,841,557.91/11,182.21
  6. Step 6: Final answer
    x = 8,481.47

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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.