Home / 13,390.64-20,086.08-3,531.32

Finding the Fourth Proportional to 13,390.64, 20,086.08 and 3,531.32

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Solution

The fourth proportional to 13,390.64, 20,086.08 and 3,531.32 is: 5,297.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.64 : 20,086.08 = 3,531.32 : x
  2. Step 2: Convert to fraction form
    13,390.64/20,086.08 = 3,531.32/x
  3. Step 3: Cross multiply
    13,390.64x = 20,086.08 × 3,531.32
  4. Step 4: Simplify right side
    13,390.64x = 70,930,376.03
  5. Step 5: Solve for x
    x = 70,930,376.03/13,390.64
  6. Step 6: Final answer
    x = 5,297.01

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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.