Home / 14,989.19-20,685.25-8,274.82

Finding the Fourth Proportional to 14,989.19, 20,685.25 and 8,274.82

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Solution

The fourth proportional to 14,989.19, 20,685.25 and 8,274.82 is: 11,419.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,989.19 : 20,685.25 = 8,274.82 : x
  2. Step 2: Convert to fraction form
    14,989.19/20,685.25 = 8,274.82/x
  3. Step 3: Cross multiply
    14,989.19x = 20,685.25 × 8,274.82
  4. Step 4: Simplify right side
    14,989.19x = 171,166,627.32
  5. Step 5: Solve for x
    x = 171,166,627.32/14,989.19
  6. Step 6: Final answer
    x = 11,419.34

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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.