Home / 18,824.64-28,229.76-6,341.28

Finding the Fourth Proportional to 18,824.64, 28,229.76 and 6,341.28

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Solution

The fourth proportional to 18,824.64, 28,229.76 and 6,341.28 is: 9,509.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,824.64 : 28,229.76 = 6,341.28 : x
  2. Step 2: Convert to fraction form
    18,824.64/28,229.76 = 6,341.28/x
  3. Step 3: Cross multiply
    18,824.64x = 28,229.76 × 6,341.28
  4. Step 4: Simplify right side
    18,824.64x = 179,012,812.49
  5. Step 5: Solve for x
    x = 179,012,812.49/18,824.64
  6. Step 6: Final answer
    x = 9,509.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.