Home / 13,511.80-20,267.70-4,277.80

Finding the Fourth Proportional to 13,511.80, 20,267.70 and 4,277.80

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Solution

The fourth proportional to 13,511.80, 20,267.70 and 4,277.80 is: 6,416.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.80 : 20,267.70 = 4,277.80 : x
  2. Step 2: Convert to fraction form
    13,511.80/20,267.70 = 4,277.80/x
  3. Step 3: Cross multiply
    13,511.80x = 20,267.70 × 4,277.80
  4. Step 4: Simplify right side
    13,511.80x = 86,701,167.06
  5. Step 5: Solve for x
    x = 86,701,167.06/13,511.80
  6. Step 6: Final answer
    x = 6,416.70

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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.