Home / 13,985.28-20,981.57-6,192.27

Finding the Fourth Proportional to 13,985.28, 20,981.57 and 6,192.27

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Solution

The fourth proportional to 13,985.28, 20,981.57 and 6,192.27 is: 9,290.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.28 : 20,981.57 = 6,192.27 : x
  2. Step 2: Convert to fraction form
    13,985.28/20,981.57 = 6,192.27/x
  3. Step 3: Cross multiply
    13,985.28x = 20,981.57 × 6,192.27
  4. Step 4: Simplify right side
    13,985.28x = 129,923,515.50
  5. Step 5: Solve for x
    x = 129,923,515.50/13,985.28
  6. Step 6: Final answer
    x = 9,290.02

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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.