Home / 15,323.63-21,132.56-9,940.46

Finding the Fourth Proportional to 15,323.63, 21,132.56 and 9,940.46

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Solution

The fourth proportional to 15,323.63, 21,132.56 and 9,940.46 is: 13,708.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323.63 : 21,132.56 = 9,940.46 : x
  2. Step 2: Convert to fraction form
    15,323.63/21,132.56 = 9,940.46/x
  3. Step 3: Cross multiply
    15,323.63x = 21,132.56 × 9,940.46
  4. Step 4: Simplify right side
    15,323.63x = 210,067,367.38
  5. Step 5: Solve for x
    x = 210,067,367.38/15,323.63
  6. Step 6: Final answer
    x = 13,708.72

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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.