Home / 11,708.10-16,156.80-6,402.90

Finding the Fourth Proportional to 11,708.10, 16,156.80 and 6,402.90

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Solution

The fourth proportional to 11,708.10, 16,156.80 and 6,402.90 is: 8,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,708.10 : 16,156.80 = 6,402.90 : x
  2. Step 2: Convert to fraction form
    11,708.10/16,156.80 = 6,402.90/x
  3. Step 3: Cross multiply
    11,708.10x = 16,156.80 × 6,402.90
  4. Step 4: Simplify right side
    11,708.10x = 103,450,374.72
  5. Step 5: Solve for x
    x = 103,450,374.72/11,708.10
  6. Step 6: Final answer
    x = 8,835.80

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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.