Home / 13,546.90-20,320.21-3,686.10

Finding the Fourth Proportional to 13,546.90, 20,320.21 and 3,686.10

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Solution

The fourth proportional to 13,546.90, 20,320.21 and 3,686.10 is: 5,529.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,546.90 : 20,320.21 = 3,686.10 : x
  2. Step 2: Convert to fraction form
    13,546.90/20,320.21 = 3,686.10/x
  3. Step 3: Cross multiply
    13,546.90x = 20,320.21 × 3,686.10
  4. Step 4: Simplify right side
    13,546.90x = 74,902,326.08
  5. Step 5: Solve for x
    x = 74,902,326.08/13,546.90
  6. Step 6: Final answer
    x = 5,529.11

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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.