Home / 13,666.20-18,852.68-11,774.50

Finding the Fourth Proportional to 13,666.20, 18,852.68 and 11,774.50

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Solution

The fourth proportional to 13,666.20, 18,852.68 and 11,774.50 is: 16,243.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.20 : 18,852.68 = 11,774.50 : x
  2. Step 2: Convert to fraction form
    13,666.20/18,852.68 = 11,774.50/x
  3. Step 3: Cross multiply
    13,666.20x = 18,852.68 × 11,774.50
  4. Step 4: Simplify right side
    13,666.20x = 221,980,880.66
  5. Step 5: Solve for x
    x = 221,980,880.66/13,666.20
  6. Step 6: Final answer
    x = 16,243.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.