Home / 13,551.60-20,320.17-6,883.99

Finding the Fourth Proportional to 13,551.60, 20,320.17 and 6,883.99

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Solution

The fourth proportional to 13,551.60, 20,320.17 and 6,883.99 is: 10,322.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.60 : 20,320.17 = 6,883.99 : x
  2. Step 2: Convert to fraction form
    13,551.60/20,320.17 = 6,883.99/x
  3. Step 3: Cross multiply
    13,551.60x = 20,320.17 × 6,883.99
  4. Step 4: Simplify right side
    13,551.60x = 139,883,770.46
  5. Step 5: Solve for x
    x = 139,883,770.46/13,551.60
  6. Step 6: Final answer
    x = 10,322.30

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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.