Home / 9,309.29-12,849.09-5,725.13

Finding the Fourth Proportional to 9,309.29, 12,849.09 and 5,725.13

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Solution

The fourth proportional to 9,309.29, 12,849.09 and 5,725.13 is: 7,902.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309.29 : 12,849.09 = 5,725.13 : x
  2. Step 2: Convert to fraction form
    9,309.29/12,849.09 = 5,725.13/x
  3. Step 3: Cross multiply
    9,309.29x = 12,849.09 × 5,725.13
  4. Step 4: Simplify right side
    9,309.29x = 73,562,710.63
  5. Step 5: Solve for x
    x = 73,562,710.63/9,309.29
  6. Step 6: Final answer
    x = 7,902.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.