Home / 14,578.54-20,121.36-9,272.32

Finding the Fourth Proportional to 14,578.54, 20,121.36 and 9,272.32

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Solution

The fourth proportional to 14,578.54, 20,121.36 and 9,272.32 is: 12,797.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,578.54 : 20,121.36 = 9,272.32 : x
  2. Step 2: Convert to fraction form
    14,578.54/20,121.36 = 9,272.32/x
  3. Step 3: Cross multiply
    14,578.54x = 20,121.36 × 9,272.32
  4. Step 4: Simplify right side
    14,578.54x = 186,571,688.76
  5. Step 5: Solve for x
    x = 186,571,688.76/14,578.54
  6. Step 6: Final answer
    x = 12,797.69

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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.