Home / 13,482.23-20,213.78-5,155.25

Finding the Fourth Proportional to 13,482.23, 20,213.78 and 5,155.25

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Solution

The fourth proportional to 13,482.23, 20,213.78 and 5,155.25 is: 7,729.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,482.23 : 20,213.78 = 5,155.25 : x
  2. Step 2: Convert to fraction form
    13,482.23/20,213.78 = 5,155.25/x
  3. Step 3: Cross multiply
    13,482.23x = 20,213.78 × 5,155.25
  4. Step 4: Simplify right side
    13,482.23x = 104,206,962.50
  5. Step 5: Solve for x
    x = 104,206,962.50/13,482.23
  6. Step 6: Final answer
    x = 7,729.21

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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.