Home / 14,707.44-20,322.96-10,721.60

Finding the Fourth Proportional to 14,707.44, 20,322.96 and 10,721.60

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Solution

The fourth proportional to 14,707.44, 20,322.96 and 10,721.60 is: 14,815.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,707.44 : 20,322.96 = 10,721.60 : x
  2. Step 2: Convert to fraction form
    14,707.44/20,322.96 = 10,721.60/x
  3. Step 3: Cross multiply
    14,707.44x = 20,322.96 × 10,721.60
  4. Step 4: Simplify right side
    14,707.44x = 217,894,647.94
  5. Step 5: Solve for x
    x = 217,894,647.94/14,707.44
  6. Step 6: Final answer
    x = 14,815.27

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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.