Home / 13,120.05-19,686.24-6,546.75

Finding the Fourth Proportional to 13,120.05, 19,686.24 and 6,546.75

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Solution

The fourth proportional to 13,120.05, 19,686.24 and 6,546.75 is: 9,823.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.05 : 19,686.24 = 6,546.75 : x
  2. Step 2: Convert to fraction form
    13,120.05/19,686.24 = 6,546.75/x
  3. Step 3: Cross multiply
    13,120.05x = 19,686.24 × 6,546.75
  4. Step 4: Simplify right side
    13,120.05x = 128,880,891.72
  5. Step 5: Solve for x
    x = 128,880,891.72/13,120.05
  6. Step 6: Final answer
    x = 9,823.20

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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.