Home / 13,675.12-20,511.84-5,353.60

Finding the Fourth Proportional to 13,675.12, 20,511.84 and 5,353.60

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Solution

The fourth proportional to 13,675.12, 20,511.84 and 5,353.60 is: 8,030.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.12 : 20,511.84 = 5,353.60 : x
  2. Step 2: Convert to fraction form
    13,675.12/20,511.84 = 5,353.60/x
  3. Step 3: Cross multiply
    13,675.12x = 20,511.84 × 5,353.60
  4. Step 4: Simplify right side
    13,675.12x = 109,812,186.62
  5. Step 5: Solve for x
    x = 109,812,186.62/13,675.12
  6. Step 6: Final answer
    x = 8,030.07

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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.