Home / 15,323.24-21,146.46-9,731

Finding the Fourth Proportional to 15,323.24, 21,146.46 and 9,731

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Solution

The fourth proportional to 15,323.24, 21,146.46 and 9,731 is: 13,429.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323.24 : 21,146.46 = 9,731 : x
  2. Step 2: Convert to fraction form
    15,323.24/21,146.46 = 9,731/x
  3. Step 3: Cross multiply
    15,323.24x = 21,146.46 × 9,731
  4. Step 4: Simplify right side
    15,323.24x = 205,776,202.26
  5. Step 5: Solve for x
    x = 205,776,202.26/15,323.24
  6. Step 6: Final answer
    x = 13,429.03

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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.