Home / 13,667.28-20,492.80-5,337.55

Finding the Fourth Proportional to 13,667.28, 20,492.80 and 5,337.55

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Solution

The fourth proportional to 13,667.28, 20,492.80 and 5,337.55 is: 8,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667.28 : 20,492.80 = 5,337.55 : x
  2. Step 2: Convert to fraction form
    13,667.28/20,492.80 = 5,337.55/x
  3. Step 3: Cross multiply
    13,667.28x = 20,492.80 × 5,337.55
  4. Step 4: Simplify right side
    13,667.28x = 109,381,241.64
  5. Step 5: Solve for x
    x = 109,381,241.64/13,667.28
  6. Step 6: Final answer
    x = 8,003.15

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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.