Home / 13,591.04-20,353.64-6,909.98

Finding the Fourth Proportional to 13,591.04, 20,353.64 and 6,909.98

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Solution

The fourth proportional to 13,591.04, 20,353.64 and 6,909.98 is: 10,348.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.04 : 20,353.64 = 6,909.98 : x
  2. Step 2: Convert to fraction form
    13,591.04/20,353.64 = 6,909.98/x
  3. Step 3: Cross multiply
    13,591.04x = 20,353.64 × 6,909.98
  4. Step 4: Simplify right side
    13,591.04x = 140,643,109.01
  5. Step 5: Solve for x
    x = 140,643,109.01/13,591.04
  6. Step 6: Final answer
    x = 10,348.23

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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.