Home / 10,399.09-15,585.03-9,079.51

Finding the Fourth Proportional to 10,399.09, 15,585.03 and 9,079.51

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Solution

The fourth proportional to 10,399.09, 15,585.03 and 9,079.51 is: 13,607.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,399.09 : 15,585.03 = 9,079.51 : x
  2. Step 2: Convert to fraction form
    10,399.09/15,585.03 = 9,079.51/x
  3. Step 3: Cross multiply
    10,399.09x = 15,585.03 × 9,079.51
  4. Step 4: Simplify right side
    10,399.09x = 141,504,435.74
  5. Step 5: Solve for x
    x = 141,504,435.74/10,399.09
  6. Step 6: Final answer
    x = 13,607.39

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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.