Home / 10,010.39-15,015.96-2,990.49

Finding the Fourth Proportional to 10,010.39, 15,015.96 and 2,990.49

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Solution

The fourth proportional to 10,010.39, 15,015.96 and 2,990.49 is: 4,485.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,010.39 : 15,015.96 = 2,990.49 : x
  2. Step 2: Convert to fraction form
    10,010.39/15,015.96 = 2,990.49/x
  3. Step 3: Cross multiply
    10,010.39x = 15,015.96 × 2,990.49
  4. Step 4: Simplify right side
    10,010.39x = 44,905,140.20
  5. Step 5: Solve for x
    x = 44,905,140.20/10,010.39
  6. Step 6: Final answer
    x = 4,485.86

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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.