Home / 14,721.34-20,322.96-11,356.60

Finding the Fourth Proportional to 14,721.34, 20,322.96 and 11,356.60

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Solution

The fourth proportional to 14,721.34, 20,322.96 and 11,356.60 is: 15,677.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.34 : 20,322.96 = 11,356.60 : x
  2. Step 2: Convert to fraction form
    14,721.34/20,322.96 = 11,356.60/x
  3. Step 3: Cross multiply
    14,721.34x = 20,322.96 × 11,356.60
  4. Step 4: Simplify right side
    14,721.34x = 230,799,727.54
  5. Step 5: Solve for x
    x = 230,799,727.54/14,721.34
  6. Step 6: Final answer
    x = 15,677.90

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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.