Home / 13,911.28-20,852.34-6,509.50

Finding the Fourth Proportional to 13,911.28, 20,852.34 and 6,509.50

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Solution

The fourth proportional to 13,911.28, 20,852.34 and 6,509.50 is: 9,757.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.28 : 20,852.34 = 6,509.50 : x
  2. Step 2: Convert to fraction form
    13,911.28/20,852.34 = 6,509.50/x
  3. Step 3: Cross multiply
    13,911.28x = 20,852.34 × 6,509.50
  4. Step 4: Simplify right side
    13,911.28x = 135,738,307.23
  5. Step 5: Solve for x
    x = 135,738,307.23/13,911.28
  6. Step 6: Final answer
    x = 9,757.43

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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.