Home / 11,461.60-15,817.17-6,985.54

Finding the Fourth Proportional to 11,461.60, 15,817.17 and 6,985.54

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Solution

The fourth proportional to 11,461.60, 15,817.17 and 6,985.54 is: 9,640.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,461.60 : 15,817.17 = 6,985.54 : x
  2. Step 2: Convert to fraction form
    11,461.60/15,817.17 = 6,985.54/x
  3. Step 3: Cross multiply
    11,461.60x = 15,817.17 × 6,985.54
  4. Step 4: Simplify right side
    11,461.60x = 110,491,473.72
  5. Step 5: Solve for x
    x = 110,491,473.72/11,461.60
  6. Step 6: Final answer
    x = 9,640.14

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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.