Home / 10,996.86-15,157.92-8,602.68

Finding the Fourth Proportional to 10,996.86, 15,157.92 and 8,602.68

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Solution

The fourth proportional to 10,996.86, 15,157.92 and 8,602.68 is: 11,857.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,996.86 : 15,157.92 = 8,602.68 : x
  2. Step 2: Convert to fraction form
    10,996.86/15,157.92 = 8,602.68/x
  3. Step 3: Cross multiply
    10,996.86x = 15,157.92 × 8,602.68
  4. Step 4: Simplify right side
    10,996.86x = 130,398,735.23
  5. Step 5: Solve for x
    x = 130,398,735.23/10,996.86
  6. Step 6: Final answer
    x = 11,857.82

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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.