Home / 10,629.72-15,911.64-9,055.08

Finding the Fourth Proportional to 10,629.72, 15,911.64 and 9,055.08

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Solution

The fourth proportional to 10,629.72, 15,911.64 and 9,055.08 is: 13,554.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.72 : 15,911.64 = 9,055.08 : x
  2. Step 2: Convert to fraction form
    10,629.72/15,911.64 = 9,055.08/x
  3. Step 3: Cross multiply
    10,629.72x = 15,911.64 × 9,055.08
  4. Step 4: Simplify right side
    10,629.72x = 144,081,173.13
  5. Step 5: Solve for x
    x = 144,081,173.13/10,629.72
  6. Step 6: Final answer
    x = 13,554.56

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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.