Home / 10,620.10-16,009.67-9,906.49

Finding the Fourth Proportional to 10,620.10, 16,009.67 and 9,906.49

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Solution

The fourth proportional to 10,620.10, 16,009.67 and 9,906.49 is: 14,933.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.10 : 16,009.67 = 9,906.49 : x
  2. Step 2: Convert to fraction form
    10,620.10/16,009.67 = 9,906.49/x
  3. Step 3: Cross multiply
    10,620.10x = 16,009.67 × 9,906.49
  4. Step 4: Simplify right side
    10,620.10x = 158,599,635.76
  5. Step 5: Solve for x
    x = 158,599,635.76/10,620.10
  6. Step 6: Final answer
    x = 14,933.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.