Home / 10,305.36-15,458.99-2,809.01

Finding the Fourth Proportional to 10,305.36, 15,458.99 and 2,809.01

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Solution

The fourth proportional to 10,305.36, 15,458.99 and 2,809.01 is: 4,213.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,305.36 : 15,458.99 = 2,809.01 : x
  2. Step 2: Convert to fraction form
    10,305.36/15,458.99 = 2,809.01/x
  3. Step 3: Cross multiply
    10,305.36x = 15,458.99 × 2,809.01
  4. Step 4: Simplify right side
    10,305.36x = 43,424,482.10
  5. Step 5: Solve for x
    x = 43,424,482.10/10,305.36
  6. Step 6: Final answer
    x = 4,213.78

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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.