Home / 13,567.11-20,353.77-5,247.20

Finding the Fourth Proportional to 13,567.11, 20,353.77 and 5,247.20

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Solution

The fourth proportional to 13,567.11, 20,353.77 and 5,247.20 is: 7,871.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,567.11 : 20,353.77 = 5,247.20 : x
  2. Step 2: Convert to fraction form
    13,567.11/20,353.77 = 5,247.20/x
  3. Step 3: Cross multiply
    13,567.11x = 20,353.77 × 5,247.20
  4. Step 4: Simplify right side
    13,567.11x = 106,800,200.18
  5. Step 5: Solve for x
    x = 106,800,200.18/13,567.11
  6. Step 6: Final answer
    x = 7,871.99

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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.