Home / 13,392.90-18,482.58-8,084.64

Finding the Fourth Proportional to 13,392.90, 18,482.58 and 8,084.64

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Solution

The fourth proportional to 13,392.90, 18,482.58 and 8,084.64 is: 11,157.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.90 : 18,482.58 = 8,084.64 : x
  2. Step 2: Convert to fraction form
    13,392.90/18,482.58 = 8,084.64/x
  3. Step 3: Cross multiply
    13,392.90x = 18,482.58 × 8,084.64
  4. Step 4: Simplify right side
    13,392.90x = 149,425,005.57
  5. Step 5: Solve for x
    x = 149,425,005.57/13,392.90
  6. Step 6: Final answer
    x = 11,157.03

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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.