Home / 13,969.61-20,955.11-4,108.98

Finding the Fourth Proportional to 13,969.61, 20,955.11 and 4,108.98

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Solution

The fourth proportional to 13,969.61, 20,955.11 and 4,108.98 is: 6,163.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969.61 : 20,955.11 = 4,108.98 : x
  2. Step 2: Convert to fraction form
    13,969.61/20,955.11 = 4,108.98/x
  3. Step 3: Cross multiply
    13,969.61x = 20,955.11 × 4,108.98
  4. Step 4: Simplify right side
    13,969.61x = 86,104,068.05
  5. Step 5: Solve for x
    x = 86,104,068.05/13,969.61
  6. Step 6: Final answer
    x = 6,163.67

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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.