Home / 10,305.09-15,458.40-2,910.15

Finding the Fourth Proportional to 10,305.09, 15,458.40 and 2,910.15

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Solution

The fourth proportional to 10,305.09, 15,458.40 and 2,910.15 is: 4,365.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,305.09 : 15,458.40 = 2,910.15 : x
  2. Step 2: Convert to fraction form
    10,305.09/15,458.40 = 2,910.15/x
  3. Step 3: Cross multiply
    10,305.09x = 15,458.40 × 2,910.15
  4. Step 4: Simplify right side
    10,305.09x = 44,986,262.76
  5. Step 5: Solve for x
    x = 44,986,262.76/10,305.09
  6. Step 6: Final answer
    x = 4,365.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.