Home / 12,130.71-18,184.59-5,552.97

Finding the Fourth Proportional to 12,130.71, 18,184.59 and 5,552.97

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Solution

The fourth proportional to 12,130.71, 18,184.59 and 5,552.97 is: 8,324.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.71 : 18,184.59 = 5,552.97 : x
  2. Step 2: Convert to fraction form
    12,130.71/18,184.59 = 5,552.97/x
  3. Step 3: Cross multiply
    12,130.71x = 18,184.59 × 5,552.97
  4. Step 4: Simplify right side
    12,130.71x = 100,978,482.73
  5. Step 5: Solve for x
    x = 100,978,482.73/12,130.71
  6. Step 6: Final answer
    x = 8,324.20

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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.